subject:(ICP MS)

Brno University of Technology

1. Musilová, Petra. Možnosti stanovení germania v potravinách: Analysis of germanium in food.

Degree: 2019, Brno University of Technology

This bachelor‘s thesis deals with chemical, physical and medical characteristics of germanium. It also describes suitable analytical methods for determination of germanium. Advisors/Committee Members: Diviš, Pavel (advisor), Moos, Martin (referee).

Subjects/Keywords: Germanium; ICP-OES; ICP-MS; Germanium; ICP-OES; ICP-MS

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APA (6^th Edition):

Musilová, P. (2019). Možnosti stanovení germania v potravinách: Analysis of germanium in food. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/5964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Musilová, Petra. “Možnosti stanovení germania v potravinách: Analysis of germanium in food.” 2019. Thesis, Brno University of Technology. Accessed February 27, 2021. http://hdl.handle.net/11012/5964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Musilová, Petra. “Možnosti stanovení germania v potravinách: Analysis of germanium in food.” 2019. Web. 27 Feb 2021.

Vancouver:

Musilová P. Možnosti stanovení germania v potravinách: Analysis of germanium in food. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11012/5964.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Musilová P. Možnosti stanovení germania v potravinách: Analysis of germanium in food. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/5964

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Oregon State University

2. Loewen, Matthew W. Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS.

Degree: MS, Geology, 2011, Oregon State University

URL: http://hdl.handle.net/1957/21822

► Semi-volatile trace metals (e.g., Cd, Sn, Pb, Zn, Cu, Mo) have been analyzed by using laser ablation ICP-MS in a number of silicate glasses (GSE-1G,… (more)

▼ Semi-volatile trace metals (e.g., Cd, Sn, Pb, Zn, Cu, Mo) have been analyzed by using laser ablation ICP-MS in a number of silicate glasses (GSE-1G, GSD-1G, NIST 610, NIST 612, BCR-2G, BHVO-2G). Our work investigates and highlights sources of uncertainty in the analysis of semi-volatile metals using LA-ICP-MS. We identify within- cell transport fractionation as a primary source of uncertainty in these analyses. We found no evidence for significant fractionation of elements on the basis of volatility over typical 45 second ablation intervals. However, systematic fractionation of up to 20% was found for a number of siderophile and chalcophile trace elements as well as volatile lithophile elements when comparing analyses from different locations with a simple single-volume ablation chamber. Some fractionation was also observed for analyses in GSE-1G that intersected fractures or cracks in the glass, although overall GSE-1G appears to be homogeneous with respect to semi-volatile element distributions at the ~10 % level. Calibration using GSE-1G produces more accurate results on basaltic glass compositions than NIST 610. This work thus confirms the suitability of GSE-1G as a calibration standard for analysis of semi-volatile metals in mafic composition glasses. This thesis also reports major and trace element data for glass, olivine, and olivine-hosted melt inclusions from the 1959 eruption of Kilauea Iki, Hawaii. Major element compositions of glasses match the results of earlier studies and suggest that dominant fractionation of olivine + Cr-spinel and secondary mixing between two magma batches control compositional variations. Melt inclusions trap melts with high sulfur concentrations (~0.1-0.15 wt.%) suggestive of a melt at or near sulfide saturation, while matrix glass is highly degassed. Lithophile trace element variations more clearly illustrate the effects of mixing at a late stage of magmatic development, and require magmas with two distinct mantle source regions and/or different degrees of partial melt. A number of non-traditional volatile trace elements were also analyzed including those with a range of volatility and geochemical affinity. Of these, most (e.g., Sn, Mo, Pb) display typical incompatible behavior while others appear to be compatible in known phases (primarily olivine: Zn, Co). Copper concentrations cannot be explained by removal of major phenocryst phases. Scatter in Cu concentrations could be achieved by either variable volatile mobility at depth or removal with a Cu-sulfide phase (either fractionated or residual). Previous studies of rare sulfides present in the 1959 eruption and more abundant sulfides crystallized in the lava lake suggest high Cu (>40 wt.%) in the sulfides. In this case even removal of a small amount of sulfide (<<1% by volume) could strongly deplete the melt of Cu while having little affect on other metals since their presence was not observed in the sulfides. There is no evidence for loss of volatile or semi-volatile trace metals during subaerial degassing. Advisors/Committee Members: Kent, Adam (advisor), Dilles, John (committee member).

Subjects/Keywords: LA-ICP-MS

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APA (6^th Edition):

Loewen, M. W. (2011). Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS. (Masters Thesis). Oregon State University. Retrieved from http://hdl.handle.net/1957/21822

Chicago Manual of Style (16^th Edition):

Loewen, Matthew W. “Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS.” 2011. Masters Thesis, Oregon State University. Accessed February 27, 2021. http://hdl.handle.net/1957/21822.

MLA Handbook (7^th Edition):

Loewen, Matthew W. “Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS.” 2011. Web. 27 Feb 2021.

Vancouver:

Loewen MW. Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS. [Internet] [Masters thesis]. Oregon State University; 2011. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1957/21822.

Council of Science Editors:

Loewen MW. Analysis of semi-volatile trace metals in basaltic glass by LA-ICP-MS. [Masters Thesis]. Oregon State University; 2011. Available from: http://hdl.handle.net/1957/21822

3. Petersen, Jassin. Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques.

Degree: Docteur es, Sciences de la Terre, 2017, Nantes

URL: http://www.theses.fr/2017NANT4022

►

L’objectif principal de cette thèse était de comprendre comment la variabilité temporelle et spatiale de l’oxygénation de l’eau de fond est enregistrée dans le test… (more)

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L’objectif principal de cette thèse était de comprendre comment la variabilité temporelle et spatiale de l’oxygénation de l’eau de fond est enregistrée dans le test des foraminifères benthiques, à travers le rapport Mn/Ca et les paramètres des pores. Pour atteindre cet objectif, Ammonia tepida, un groupe d’espèces pseudocryptiques, du Grevelingenmeer (Pays-Bas) a été principalement étudié. A ce site, le gradient bathymétrique est accompagné par une augmentation de la durée et de l’intensité de l’hypoxie/anoxie saisonnière qui influence indirectement le rapport Mn/Ca et directement la porosité d’A. tepida. Notre étude de la Zone à Oxygène Minimum de la Mer d’Arabie suggère la présence d’un important biais diagénétique dans le signal Mn/Ca lors de la transition d’un foraminifère vivant vers un test fossile. En conclusion de cette thèse, la composition Mn/Ca d’un test des foraminifères benthiques dans notre zone d’étude semble être influencée par trois facteurs temporelles 1) l’oxygénation du milieu benthique et la position de la zone redox enrichie en Mn2+ dans l’eau interstitielle, 2) l’activité des bactéries câblées et 3) la période de calcification, ainsi que par trois facteurs spatiaux qui déterminent la position du foraminifère par rapport à la zone de Mn2+ lors de la calcification 4) le microhabitat, 5) la migration verticale des foraminifères et 6) la bioturbation de la macrofaune. Dans le Grevelingenmeer, la porosité d’A. tepida montre une relation avec l’oxygénation. Le couplage entre porosité et oxygénation semble être direct, une plus grande porosité permettant des échanges de gaz plus intensifs. Au contraire, la relation entre le rapport Mn/Ca et l’oxygénation serait plus indirecte, puisque celle-ci est également influencée par l’activité microbienne. L’utilisation simultanée de ces deux proxies totalement indépendants nous semble prometteuse, spécialement parce que ces proxies réagissent à différentes échelles de temps.

The main objective of this thesis was to investigate how the temporal and spatial variability of bottom water oxygenation is recorded in the benthic foraminiferal test, by the Mn/Ca ratio, and by the pore parameters. To achieve this objective, Ammonia tepida, a group of pseudocryptic species, of the Lake Grevelingen (Netherlands) was mainly studied. At this site, the depth gradient is accompanied by an increase in duration and intensity of seasonal hypoxia/anoxia which indirectly influences the Mn/Ca ratio and directly the porosity of A. tepida. Our study of the Oxygen Minimum Zone in the Arabian Sea suggests the presence of a significant diagenetic effect during the transition of a Mn/Ca signal from a living foraminifer to a fossil signal. In conclusion of this PhD research, the Mn/Ca signal of a benthic foraminiferal test seems to be influenced by three temporal factors: 1) the oxygenation of the benthic ecosystem and the position of the Mn2+ zone in the interstitial water, 2) the cable bacteria activity, and 3) the period of calcification, as well as by three spatial factors which…

Advisors/Committee Members: Jorissen, Frans J. (thesis director), Bézos, Antoine (thesis director), Barras, Christine (thesis director).

Subjects/Keywords: LA-ICP-MS

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APA (6^th Edition):

Petersen, J. (2017). Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques. (Doctoral Dissertation). Nantes. Retrieved from http://www.theses.fr/2017NANT4022

Chicago Manual of Style (16^th Edition):

Petersen, Jassin. “Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques.” 2017. Doctoral Dissertation, Nantes. Accessed February 27, 2021. http://www.theses.fr/2017NANT4022.

MLA Handbook (7^th Edition):

Petersen, Jassin. “Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques.” 2017. Web. 27 Feb 2021.

Vancouver:

Petersen J. Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques. [Internet] [Doctoral dissertation]. Nantes; 2017. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2017NANT4022.

Council of Science Editors:

Petersen J. Development of paleo-oxygenation proxies : new insights into Mn/Ca ratios and pore patterns of benthic foraminiferal tests : Développement de proxies de paléo-oxygénation basés sur la géochimie des foraminifères benthiques. [Doctoral Dissertation]. Nantes; 2017. Available from: http://www.theses.fr/2017NANT4022

University of Debrecen

4. Mogyorós, Anna. ICP-MS validálási paramétereinek meghatározása .

Degree: DE – TEK – Természettudományi és Technológiai Kar – Kémiai Intézet, 2013, University of Debrecen

URL: http://hdl.handle.net/2437/168886

Az analitikai laboratóriumokkal szemben támasztott igények megkövetelik, hogy a laboratóriumok mérési eredményei megbízhatóak, ellenőrizhetőek és visszakereshetőek legyenek. Advisors/Committee Members: Kovács, Béla (advisor).

Subjects/Keywords: validálás; ICP-MS

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APA (6^th Edition):

Mogyorós, A. (2013). ICP-MS validálási paramétereinek meghatározása . (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/168886

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mogyorós, Anna. “ICP-MS validálási paramétereinek meghatározása .” 2013. Thesis, University of Debrecen. Accessed February 27, 2021. http://hdl.handle.net/2437/168886.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mogyorós, Anna. “ICP-MS validálási paramétereinek meghatározása .” 2013. Web. 27 Feb 2021.

Vancouver:

Mogyorós A. ICP-MS validálási paramétereinek meghatározása . [Internet] [Thesis]. University of Debrecen; 2013. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2437/168886.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mogyorós A. ICP-MS validálási paramétereinek meghatározása . [Thesis]. University of Debrecen; 2013. Available from: http://hdl.handle.net/2437/168886

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Debrecen

5. Várallyay, Szilvia. Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal .

Degree: DE – ATC – Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási Kar, 2013, University of Debrecen

URL: http://hdl.handle.net/2437/176922

► Az egyik legértékesebb élelmiszerünk a tej, mely megfelelő arányban és könnyen emészthető formában tartalmazza a kielégítő táplálkozáshoz nélkülözhetetlen fehérjéket, esszenciális aminosavakat, szénhidrátokat, zsírokat, vitaminokat, valamint… (more)

▼ Az egyik legértékesebb élelmiszerünk a tej, mely megfelelő arányban és könnyen emészthető formában tartalmazza a kielégítő táplálkozáshoz nélkülözhetetlen fehérjéket, esszenciális aminosavakat, szénhidrátokat, zsírokat, vitaminokat, valamint ásványi anyagokat.Az élelmiszerekben található ásványi alkotók folyamatos monitorozása kiemelten fontos élelmezés-egészségügyi, élelmiszerbiztonsági feladatot képez. Az induktív csatolású plazma optikai emissziós spektrometria (ICP-OES), valamint az induktív csatolású plazma tömegspektrometria (ICP-MS) potenciálisan kínál viszonylag gyors, egyszerű módszert a különböző ásványi alkotók mennyiségi vizsgálatára. Az elemanalitikai célú műszeres mérést általában előkészítő műveletek előzik meg, melyek megkezdése előtt kiemelt figyelmet kell fordítani a vizsgálni kívánt elemre, elemekre vonatkozó optimális mintaelőkészítési módszer megválasztására, hiszen a nem megfelelő módszer használata esetén megváltozhat a vizsgálandó minta elemösszetétele. Ennek köszönhetően a mérési eredmény pontossága kifogásolható. A műszeres analitikában a megfelelően pontos mérés egyik további feltétele a vizsgálatokhoz alkalmazott készülékek mérési paramétereinek optimális beállítása. Az előzőekben leírtakból adódóan kutatómunkám az ICP-OES és az ICP-MS mérési paraméterének vizsgálatára, valamint a különböző mintaelőkészítési módokat összehasonlítva, adott elem méréséhez optimális mintaelőkészítési módszer meghatározására irányult. A munkám során vizsgált mintaelőkészítési módszerek a hamvasztás, a nyílt rendszerben atmoszférikus nyomáson, valamint zárt térben mikrohullámú energiaközléssel végzett nedves roncsolás, illetve közvetlen hígítás volt. Az ICP-MS mérési paraméterének optimalizálásaként vizsgáltam, hogy mely izotópon/izotópokon, ICP-OES esetén pedig, hogy milyen hullámhosszúságú vonalon érdemes a különböző elemek koncentrációját meghatározni. Advisors/Committee Members: Kovács, Béla Róbert (advisor).

Subjects/Keywords: tej; ICP-MS; ICP-OES; mérési paraméterek

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Várallyay, S. (2013). Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal . (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/176922

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Várallyay, Szilvia. “Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal .” 2013. Thesis, University of Debrecen. Accessed February 27, 2021. http://hdl.handle.net/2437/176922.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Várallyay, Szilvia. “Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal .” 2013. Web. 27 Feb 2021.

Vancouver:

Várallyay S. Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal . [Internet] [Thesis]. University of Debrecen; 2013. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2437/176922.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Várallyay S. Mérési paraméterek és mintaelőkészítési módszerek vizsgálata, tej elemtartalom meghatározásához ICP technikákkal . [Thesis]. University of Debrecen; 2013. Available from: http://hdl.handle.net/2437/176922

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

6. Moos, Martin. Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/1500

► The work has been focused on the preconcentration techniques for determination of uranium on the modified sorbent, with the final use of ICP-OES and ICP-MS.… (more)

▼ The work has been focused on the preconcentration techniques for determination of uranium on the modified sorbent, with the final use of ICP-OES and ICP-MS. First ICP-OES at a wavelength of 385.958 nm was used for determination of uranium. Parameters were optimized and the effect of mineral acids (HCl, HNO3), tensides (Septonex, Ajatin) and organic reagents like (4-(2-pyridylazo)resorcinol, ammonium pyrrolidinedithiocarbamate, 8-hydroxyquinoline-5-sulphonic acid and 1,2-dihydroxyanthraquinone-3-sulphonic acid) was observed. For ICP-MS an isotope 238U was chosen. As an internal standard 209Bi (200 ?g•l-1) was used. Modified silica gel was used (Silicagel tethered with C18, C8 alkyls and phenyl) and two types of Amberlite XAD 4 and XAD 16 for the preconcentration of uranium (VI). Commercially produced Amberlite was modified as follows: Drying at 100 °C (24 hours), milled, minced sorbent was selected and fractionated to particles size ranging from 0.32 to 0.63 ?m and finally activated in methanol. The deionised water and Septonex (5•10-3 mol•l-1) at pH 8 were used for Amberlite conditioning. The optimal sorption of uranium (VI) proceeded at pH 8 in the presence of 4-(2-pyridylazo)resorcinol or ammonium pyrrolidinedithiocarbamate with Amberlite XAD-16 moreover with 1,2-dihydroxyanthraquinone-3-sulphonic acid. All organic reagents have mass concentration five time larger than uranium . For the elution of uranium the mixture of 1 mol•l-1 HNO3 with acetone (ratio of 1:1) was used. Acetone was evaporated and the final analysis performed using ICP-OES. The preconcentration of uranium (VI) using Silicagel-C18 conditioning was performed with ethanol, deionised water and Zephyraminu (5•10-4 mol•l-1) at pH 8. For the Silica-C8 and Silicagel-Phenyl the same conditioning procedure without zephyramin was used. Silica-C18 had the highest sorption efficiency with 1,2-dihydroxyanthraquinone-3-sulphonic acid, Silicagel-C8 with ammonium pyrrolidinedithiocarbamate and Silicagel-Phenyl with 8-hydroxyquinoline-5-sulfonic acid, all organic reagents have mass concentration five time larger than uranium concentration. As an optimal elution mixture acetone and ethanol (ratio of 1:1) in the presence of 1 mol•l-1 HCl was evaluated. Acetone and ethanol was evaporated and the final analysis was performed using ICP-MS. Silicagel-C18 was evaluate as the most effective in the presence of zephyramin and 1,2-dihydroxyanthraquinone-3-sulphonic acid. Sorption was also tested in the presence of 20 ?g•l-1 microelements (Be, V, Co, Ni, Y, Pb, Th, Cd) and in the presence of a defined concentrations of K, Na, Ca, Mg, Al and Fe. Direct analysis of uranium was carried out on samples of water from the river Ploucnice and Turonian aquifers containing uranium, 3,5 and 19,3 ?g•l-1. Different type of water required preconcentration of uranium (VI) on Silica-C18 in the presence of 1,2-dihydroxyanthraquinone-3-sulphonic acid and zephyramin. The analysis results gave statistically satisfactory results, which were confirmed using standard addition of 20 ?g•l-1. Advisors/Committee Members: Sommer, Lumír (advisor), Řehůřková, Irena (referee), Kanický, Viktor (referee), Kráčmar, Stanislav (referee).

Subjects/Keywords: URAN; SPE; ICP-MS; ICP-OES; URANIUM; SPE; ICP-MS; ICP-OES

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APA (6^th Edition):

Moos, M. (2019). Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/1500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Moos, Martin. “Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents.” 2019. Thesis, Brno University of Technology. Accessed February 27, 2021. http://hdl.handle.net/11012/1500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Moos, Martin. “Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents.” 2019. Web. 27 Feb 2021.

Vancouver:

Moos M. Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11012/1500.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Moos M. Prekoncentrační techniky pro stanovení uranu s využitím modifikovaných sorbentů.: Preconcentration Techniques for Determination of Uranium Using the Modified Sorbents. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/1500

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

7. Wang, Shiao-ming. 1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS.

Degree: Master, Chemistry, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0704113-141931

► Chemical vapor generation (CVG), initially developed by Braman and Foreback in 1973. The analysis react with reduction in acid and produce hydride compounds. Hydride compounds… (more)

▼ Chemical vapor generation (CVG), initially developed by Braman and Foreback in 1973. The analysis react with reduction in acid and produce hydride compounds. Hydride compounds have much Sample transport efficiency than nebulizer, so it is so sensitive that the method can lower limit detection. Using CVG system can separate analysis from matrix by gas-liquid separator and avoid spectra interfere. First study using slurry sampling as pretreatment, and determination cadmium, antimony and mercury by SS-FIA-CVG-ICP-MS. To get best signal, testing concentration of thiourea, cobalt, HCl and NaBH4. In addition, testing reagent flow rate and volume of mixing coil, too.Then, we compare slope of external calibration and standard addition to ensure effect by matrix on chemical vapor generation. We choose standard addition and isotope dilution as quantitative method. The experimental method detection limits for cadmium, antimony and mercury are in the range of 0.1-0.15 Î¼g kg-1 . To avoid various species of antimony and mercury affect accuracy of quantitative, we compare chemical vapor generation of Sb(III) and Sb(V) as well as Hg(II) and CH3Hg(II). The accuracy of the method is evaluated by analyzing a rice flour certified reference material (NIST 1568a). Second study is a method employing a vapor generation system and LC combines with inductively coupled plasma mass spectrometry (LC-ICP-MS) is presented for the determination of arsenic species in water sample. To get best signal, testing concentration of thiourea, HCl and NaBH4. In addition, testing reagent flow rate and volume of mixing coil, too. To avoid 40Ar35Cl interferes with 75As, we choose H2 as reaction gas in DRC system to transfer charge from polyatomic ions 40Ar35Cl+ and get accurate quantitative. We use ion exchange chromatography to separate As(III), DMA, MMA, As(V).The effency of the mobile phase, ammonium carbonate, is evaluated for LC separation of As(III), DMA, MMA, As(V). The sensitivity, detection limits of LC-ICP-MS with a vapor generation is better than LC-ICP-MS with pneumatic nebulization. To get best signal by LC-CVG-ICP-MS, testing pH, concentration of salt and flow rate of LC. The accuracy of the method is evaluated by analyzing riverine water certified reference material (SLRS-4) and estuarine water certified reference material (SLEW-3). Advisors/Committee Members: Shou-Mei Wu (chair), Wei-Lung Tseng (chair), Shiuh-jen Jiang (committee member).

Subjects/Keywords: CVG; ICP-MS; HPLC; DRC

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wang, S. (2013). 1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0704113-141931

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wang, Shiao-ming. “1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS.” 2013. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0704113-141931.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wang, Shiao-ming. “1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS.” 2013. Web. 27 Feb 2021.

Vancouver:

Wang S. 1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS. [Internet] [Thesis]. NSYSU; 2013. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0704113-141931.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wang S. 1.Direct determination of cadmium, antimony and mercury in powder food by SS-FIA-CVG-ICP-MS with slurry sample 2.Determination of arsenic species in water sample by HPLC-CVG-ICP-MS. [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0704113-141931

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

8. Liu, Yin-hsiao. Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS.

Degree: Master, Chemistry, 2014, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0622114-215059

► In the first study, speciation of arsenic in seaweeds was carried out using ion chromatography (IC) for separation and inductively coupled mass spectrometry (ICP-MS) for… (more)

▼ In the first study, speciation of arsenic in seaweeds was carried out using ion chromatography (IC) for separation and inductively coupled mass spectrometry (ICP-MS) for detection. The arsenic species studied were arsenite [As(III)], arsenate [As(V)], monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), arsenobeta- ine (AsB), arsenocholine (AsC), OH-arsenoribose (OH-AsR), PO4-arsenoribose (PO4- AsR) , SO3H-arsenoribose (SO3H - AsR), and trialkylarsonioribosides (Trialkyl-AsR). Chromatographic separation of all the species was achieved in <19 min in gradient elution mode using (NH4)2CO3 at pH 8.7. Since there was not standard of arsenosugar, in the experiment used extraction of Laminaria japonica Areschoug spiked [As(III)], [As(V)], MMA, DMA, AsB, AsC. The outlet of the IC column was directly connected to the nebulizer of ICP-MS for the determination of arsenic. The speciation of arsenic has been carried out in several seaweed samples. A microwave-assisted extraction method was used for the extraction of arsenic species from seaweed samples. With a mixture of mobile phase A and methanol as extractant, the extraction efficiency was >73%, and the recoveries from spiked samples were in the range of 93â109%. The unknown compounds detected in different seaweeds were identified by coupling IC directly with electrospray ionizationâmass spectrometry (ESI-MS). Four arsenosugars and tetramethylarsonium ion (TMA) were identified in different seaweeds. A fat- soluble arsenolipid compound was identified in the extract of certified reference material BCR-279 Ulva lactuca when 1% HNO3 was used as the extractant. Second study, A HPLC separation procedure has been developed for the specia- tion of Cr(III), Cr(VI) in wine and diabetic supplement drinks samples. The species were separated on a reversed phase column (C8) in gradient elution mode. The mobile phase consisting of EDTA and TBAP in methanol at pH 6.9, yielded well resolved chromatograms of all the species within 2 min. The analyses were carried out using dynamic reaction cell inductively coupled plasma-mass spectrometer (DRC-ICP-MS). The DRC conditions have also been optimized to obtained interference free measure- ments of 52Cr+ and 53Cr+, which were otherwise interfered by: 35Cl16O1H+, 35Cl17O+, 40Ar12C+ on 52Cr+; and 37Cl16O+, 40Ar13C+, 40Ar12C1H+ on 53Cr+. The detection limits of the procedure were 0.052 ng 52Cr ml-1 and 0.054 ng 53Cr ml-1. The accuracy of the method has been validated by comparing the sum of the concentrations obtained for individual species with total concentration of the elements in NRCC SLRS-4 River Water. The method has also been applied on several real samples, included environmental water, wine and supplement drinks, in which case the comparison total chromium concentration. Supplement drinks has been made with total concentrations determined after complete dissolution of the samples. The species were separated by HPLC-DRC-ICP-MS in appropriate dilute. Advisors/Committee Members: Shiuh-Jen Jiang (committee member), Yen-Ling Chen (chair), Shou-Mei Wu (chair).

Subjects/Keywords: Chromium; Arsenic; HPLC; ICP-MS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Liu, Y. (2014). Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0622114-215059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Yin-hsiao. “Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS.” 2014. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0622114-215059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Yin-hsiao. “Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS.” 2014. Web. 27 Feb 2021.

Vancouver:

Liu Y. Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS. [Internet] [Thesis]. NSYSU; 2014. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0622114-215059.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu Y. Determination of arsenic species in seaweeds and chromium species by HPLC-ICP-MS. [Thesis]. NSYSU; 2014. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0622114-215059

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

9. Wu, Min-Chuan. Determination of trace metal in milk and steel by DRC ICP-MS.

Degree: Master, Chemistry, 2003, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-160536

none Advisors/Committee Members: none (chair), none (committee member), none (chair).

Subjects/Keywords: ICP-MS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Wu, M. (2003). Determination of trace metal in milk and steel by DRC ICP-MS. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-160536

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wu, Min-Chuan. “Determination of trace metal in milk and steel by DRC ICP-MS.” 2003. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-160536.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wu, Min-Chuan. “Determination of trace metal in milk and steel by DRC ICP-MS.” 2003. Web. 27 Feb 2021.

Vancouver:

Wu M. Determination of trace metal in milk and steel by DRC ICP-MS. [Internet] [Thesis]. NSYSU; 2003. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-160536.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wu M. Determination of trace metal in milk and steel by DRC ICP-MS. [Thesis]. NSYSU; 2003. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-160536

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

10. Tsai, Yu-Tuan. none.

Degree: Master, Chemistry, 2003, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-161438

Subjects/Keywords: ICP-MS

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APA (6^th Edition):

Tsai, Y. (2003). none. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-161438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsai, Yu-Tuan. “none.” 2003. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-161438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsai, Yu-Tuan. “none.” 2003. Web. 27 Feb 2021.

Vancouver:

Tsai Y. none. [Internet] [Thesis]. NSYSU; 2003. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-161438.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsai Y. none. [Thesis]. NSYSU; 2003. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0711103-161438

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

11. Hsuan Yen, Ke. Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS.

Degree: Master, Chemistry, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0627116-141935

► In the first study, we assess the inorganic arsenic species content in seaweed and rice. The determination of arsenic species have bee used ion exchange… (more)

Subjects/Keywords: HPLC; ICP-MS; CVG; DRC

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APA (6^th Edition):

Hsuan Yen, K. (2016). Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0627116-141935

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hsuan Yen, Ke. “Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS.” 2016. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0627116-141935.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hsuan Yen, Ke. “Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS.” 2016. Web. 27 Feb 2021.

Vancouver:

Hsuan Yen K. Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0627116-141935.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hsuan Yen K. Determination of Inorganic arsenic compound in rice and seaweed by HPLC-DRC-CVG-ICP-MS. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0627116-141935

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

12. Oliveira, Luciano Henrique Barca de [UNESP]. Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III).

Degree: 2017, Universidade Estadual Paulista

URL: http://hdl.handle.net/11449/150337

►

O mercado de pescados no Brasil tem se expandido muito nos últimos anos e com previsão de um crescimento ainda maior. A busca crescente por… (more)

▼

O mercado de pescados no Brasil tem se expandido muito nos últimos anos e com previsão de um crescimento ainda maior. A busca crescente por essa fonte de alimento no país leva à uma preocupação associada a qualidade do pescado, principalmente se tratando de metais tóxicos presentes nas águas e sedimentos dos rios. Os peixes, assim como outros frutos do mar, têm a capacidade de bioacumular estes metais em seu organismo, seja por contato direto ou indireto. O arsênio é um destes contaminantes e está presente naturalmente em águas e sedimentos, e também advindo de atividades antropogênicas como queima de combustíveis fósseis e agrotóxicos. A concentração de arsênio total nos principais tecidos da tilápia foram determinados e uma estimativa dos riscos associados ao consumo deste peixe na região Noroeste de São Paulo foi realizada, levando em conta as diretrizes estabelecidas pela FAO/OMS. As análises foram realizadas por espectrometria de massa com plasma indutivamente acoplado (ICP-MS) no modo de discriminação de energia cinética (KED). Materiais de referência certificados foram analisados com recuperações de 101, 110 e 80% de NIST 1640a, NIST 1566b e DORM-3, respectivamente. Na parte consumível (o tecido muscular dos peixes), a concentração média encontrada foi de 0,030 ± 0,008 μg g-1, que é inferior ao valor máximo permitido de arsênio estabelecido pelas agências reguladoras nacionais e internacionais. A concentração média encontrada nas vísceras (estômago, brânquias e fígado) esteve na faixa de 0,016 – 1,170 μg g-1, demonstrando maior capacidade de bioacumulação de arsênio. Foram realizados esnsaios de bioacumulação com As(III) (espécie mais tóxica do arsênio) com tilápias em laboratório. O ensaio foi dividido em grupo de 7 dias de exposição e 7 dias de depuração ao contaminante. Os resultados demonstraram que o estômago e fígado desempenham um papel importante na absorção e acúmulo desse semimetal presente em águas contaminadas. A estimativa dos parâmetros tóxicocinéticos (constantes de absorção, depuração e fator de bioconcentração – BCF) obtidas com os testes de exposição ao As(III), permitiu avaliar a capacidade de absorção e depuração de cada órgão de interesse. A ordem de bioacumulação determinada pelo BCF foi: estômago > fígado > brânquias > filet.

Seafood market in Brazil has expanded greatly in recent years and is expected to grow even more. The search for this food source in the country leads to a concern associated with the quality of the fish, mainly by the treatment of toxic metals in the waters and sediments of the rivers. Fish, like other seafood, have the ability to bioaccumulate these metals in your body by direct or indirect contact. Arsenic is one of these contaminants and is naturally present in waters and sediments, as well as from anthropogenic activities such as the burning of fossil fuels and agrochemicals. The concentration of total arsenic in the main tissues of tilapia were evaluated and an estimation of the risks associated with the consumption of this fish was done, taking into…

Advisors/Committee Members: Gonzalez, Mario Henrique [UNESP], Nogueira, Ana Rita de Araujo, Universidade Estadual Paulista (UNESP).

Subjects/Keywords: Bioacumulação; Arsênio; ICP-MS; Pescados

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Oliveira, L. H. B. d. [. (2017). Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III). (Thesis). Universidade Estadual Paulista. Retrieved from http://hdl.handle.net/11449/150337

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Oliveira, Luciano Henrique Barca de [UNESP]. “Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III).” 2017. Thesis, Universidade Estadual Paulista. Accessed February 27, 2021. http://hdl.handle.net/11449/150337.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Oliveira, Luciano Henrique Barca de [UNESP]. “Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III).” 2017. Web. 27 Feb 2021.

Vancouver:

Oliveira LHBd[. Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III). [Internet] [Thesis]. Universidade Estadual Paulista; 2017. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/11449/150337.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Oliveira LHBd[. Avaliação dos teores de arsênio em tecidos de tilápias (Oreochromis niloticus) e estudo da bioacumulação de As (III). [Thesis]. Universidade Estadual Paulista; 2017. Available from: http://hdl.handle.net/11449/150337

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

13. Rodrigues, Jairo Lisboa. Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma.

Degree: PhD, Toxicologia, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13082010-100725/ ;

►

O Mercúrio (Hg) é um dos mais tóxicos poluentes do meio ambiente. Ele existe basicamente em três formas: Mercúrio elementar (Hg0), ou Hg metálico, mercúrio… (more)

▼

O Mercúrio (Hg) é um dos mais tóxicos poluentes do meio ambiente. Ele existe basicamente em três formas: Mercúrio elementar (Hg0), ou Hg metálico, mercúrio inorgânico (Hg-i), principalmente o cloreto mercúrico e o mercúrio orgânico (Hg-o), representado principalmente pelo metilmercúrio (MeHg) e etilmercúrio (EtHg), sendo que as formas orgânicas do Hg são mais tóxicas. Sendo assim, é de suma importância que se tenha métodos de fracionamento (Hg t, Hg-i e Hg-o pela diferença) e de especiação de mercúrio (Hg-i, MeHg, EtHg) para diferenciação das espécies de mercúrio em matrizes biológicas. Neste sentido, o presente trabalho teve como objetivos o desenvolvimento de três métodos analíticos rápidos, simples e sensíveis para: i) fracionamento entre Hg-t e Hg-i em sangue/plasma (Hg-o pela diferença) utilizando sistema de geração de vapor frio em linha com ICP-MS (CV ICP-MS); ii) especiação de Hg em amostras de sangue e plasma utilizando o acoplamento HPLC-ICP-MS; iii) especiação de Hg em amostras de sangue utilizando o acoplamento GC-ICP-MS. No método de fracionamento de mercúrio foi feito o preparo de amostras utilizando hidróxido de tetrametilamônio (TMAH) à temperatura ambiente. No método de especiação por HPLC-ICP-MS foi feita a extração das espécies utilizando banho ultrassônico, ao passo que no método GC-ICP-MS foi feita a extração das espécies assistida por microondas. O método CV ICP-MS foi comparado com a geração de vapor utilizando absorção atômica (CV AAS) não tendo diferença estatística entre os dois métodos. Para validação dos métodos foi utilizado Material de Referência Certificado (NIST 966) e outros Materiais de Referência. Os métodos foram aplicados para análise de amostras de sangue de populações Ribeirinhas da Amazônia brasileira expostas ao mercúrio. Os métodos demonstraram ser simples e rápidos, podendo facilmente serem implantados em rotina de laboratórios clínicos.

Mercury (Hg) is one of the most toxic environmental pollutants. It exists primarily in three forms: elemental mercury (Hg0), or metallic mercury, inorganic mercury (Hg-i), particularly mercuric chloride and organic mercury (Hg-o), mainly represented by methylmercury (MeHg) and ethylmercury (EtHg), and the organic forms of mercury are more toxic than the inorganic ones. Then, it is very important the development of simple and fast methods for mercury fractionation (T-Hg, Hg-i and Hg-o by the difference) or speciation (Hg-i, MeHg, EtHg) in biological samples. Then, the aims of this work were to evaluate three analytical methods for: i) mercury fractionation in blood/plasma samples (Hg-t, Hg-i and Hg-o by difference) by using a ICP-MS on line coupled to a cold-vapor generation system (CV ICP-MS), ii) Hg speciation in blood and plasma by using LC coupled to ICP-MS; iii) Hg speciation in blood samples with the use of GC coupled to ICP-MS. For the fractionation method, samples were previously incubated with tetramethylammonium hydroxide (TMAH) at room temperature. On the other hand, for the speciation of Hg in blood/plasma by using HPLC-ICP-MS…

Advisors/Committee Members: Barbosa Junior, Fernando.

Subjects/Keywords: blood; cold vapor; GC-ICP-MS; GC-ICP-MS; HPLC-ICP-MS; HPLC-ICP-MS; mercúrio; mercury; sangue; speciation; vapor frio

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Rodrigues, J. L. (2010). Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13082010-100725/ ;

Chicago Manual of Style (16^th Edition):

Rodrigues, Jairo Lisboa. “Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma.” 2010. Doctoral Dissertation, University of São Paulo. Accessed February 27, 2021. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13082010-100725/ ;.

MLA Handbook (7^th Edition):

Rodrigues, Jairo Lisboa. “Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma.” 2010. Web. 27 Feb 2021.

Vancouver:

Rodrigues JL. Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma. [Internet] [Doctoral dissertation]. University of São Paulo; 2010. [cited 2021 Feb 27]. Available from: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13082010-100725/ ;.

Council of Science Editors:

Rodrigues JL. Avaliação de técnicas acopladas à espectrometria de massas com plasma (ICP-MS) visando o fracionamento e a especiação química de mercúrio em sangue e plasma. [Doctoral Dissertation]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-13082010-100725/ ;

Texas A&M University

14. Wilcoxson, Ryan Garrett. Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis.

Degree: MS, Geology, 2018, Texas A&M University

URL: http://hdl.handle.net/1969.1/173484

► The Woodford Shale and the overlying Mississippian Limestone constitute one of the major oil and gas producing intervals across the Anadarko basin and adjacent shelves.… (more)

▼ The Woodford Shale and the overlying Mississippian Limestone constitute one of the major oil and gas producing intervals across the Anadarko basin and adjacent shelves. Known for its organic-richness and generation potential, the Woodford Shale has long been recognized as a major source rock for produced oils from the Mississippian Limestone. However, variations in crude-oil composition, together with the presence of secondary organic-rich mudrocks within the Mississippian Limestone, provide another hydrocarbon charge source. Recent organic geochemical studies showed evidence for a contribution to the produced oils from Mississippian mudrocks, in addition to the Woodford Shale. Here, we use inorganic elemental analyses as an additional tool for unraveling source rock depositional settings and secondary processes associated with hydrocarbon generation and migration. In this study, a collection of oil samples, together with core samples from Logan County in north-central Oklahoma, was examined using inductively-coupled plasma mass spectrometry (ICP-MS). Additionally, rock samples were analyzed using Rock-Eval for hydrocarbon generation potential assessment, and oil samples were processed for overall n-alkane profiles using GC-FID. Based on TOC and elemental composition signatures, samples from the organic-rich beds within the Mississippian section were divided into three intervals, and compared with the Woodford Shale samples. Average TOC values for organic-rich Mississippian rocks increase down section with an average of 5.8%, while TOC values for the Woodford Shale average 7.1%. The depth profile trend of major and trace elements such as Mg, Al, Fe, V, Ni etc. were compared with Rock-Eval and GC-FID data to evaluate organic matter type, preservation and redox condition, and hydrocarbon generation potential. Additionally, an inorganic elemental fingerprint was developed for the rocks and compared with that of the crude-oil samples, with the aim to understand the use of elemental fingerprinting as a tool for oil-source correlation and/or secondary alteration processes as a function of hydrocarbon migration. Advisors/Committee Members: Marcantonio , Franco (advisor), Miceli Romero , Andrea (committee member), King, Michael (committee member).

Subjects/Keywords: Woodford; Mississippian; ICP-MS; inorganic

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APA (6^th Edition):

Wilcoxson, R. G. (2018). Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/173484

Chicago Manual of Style (16^th Edition):

Wilcoxson, Ryan Garrett. “Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis.” 2018. Masters Thesis, Texas A&M University. Accessed February 27, 2021. http://hdl.handle.net/1969.1/173484.

MLA Handbook (7^th Edition):

Wilcoxson, Ryan Garrett. “Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis.” 2018. Web. 27 Feb 2021.

Vancouver:

Wilcoxson RG. Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis. [Internet] [Masters thesis]. Texas A&M University; 2018. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/1969.1/173484.

Council of Science Editors:

Wilcoxson RG. Inorganic Elemental Analysis of Woodford and Mississippian Mudrocks: Implication for Petroleum Systems Analysis. [Masters Thesis]. Texas A&M University; 2018. Available from: http://hdl.handle.net/1969.1/173484

University of Debrecen

15. Hanyi, Nóra. A magyar borok nehézfémtartalma .

Degree: DE – ATC – Mezőgazdaságtudományi Kar, 2010, University of Debrecen

URL: http://hdl.handle.net/2437/99662

► Szakdolgozatomban a magyar borok nehézfémtartalmát vizsgáltam,egy angol szerzőpáros 2008-as negatív hangvételű szakcikkére reagálva. 97 különböző borminta elemtartalmát vizsgáltam (43 elemet, melyet 6 elemre szűkítettem) ICP-OES,… (more)

Subjects/Keywords: bor; nehézfém; klaszteranalízis; ICP-MS

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APA (6^th Edition):

Hanyi, N. (2010). A magyar borok nehézfémtartalma . (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/99662

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hanyi, Nóra. “A magyar borok nehézfémtartalma .” 2010. Thesis, University of Debrecen. Accessed February 27, 2021. http://hdl.handle.net/2437/99662.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hanyi, Nóra. “A magyar borok nehézfémtartalma .” 2010. Web. 27 Feb 2021.

Vancouver:

Hanyi N. A magyar borok nehézfémtartalma . [Internet] [Thesis]. University of Debrecen; 2010. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2437/99662.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hanyi N. A magyar borok nehézfémtartalma . [Thesis]. University of Debrecen; 2010. Available from: http://hdl.handle.net/2437/99662

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Debrecen

16. Farkas, Gergő. ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz .

Degree: DE – Természettudományi és Technológiai Kar – Kémiai Intézet, 2014, University of Debrecen

URL: http://hdl.handle.net/2437/191906

Diplomamunkám célja az volt, hogy az ICP-MS mérések eredményeit pontosabbá tegyem, illetve alacsonyabb kimutatási határt érjek el, ezért egy multielemes mintával végeztem méréseket, mely során az üzemeltető szoftver segítségével módosítottam az ionizációs, mintabeviteli és egyéb mérési paramétereket. Advisors/Committee Members: Kovács, Béla (advisor).

Subjects/Keywords: ICP-MS mérések; mikroanalitika

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APA (6^th Edition):

Farkas, G. (2014). ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz . (Thesis). University of Debrecen. Retrieved from http://hdl.handle.net/2437/191906

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Farkas, Gergő. “ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz .” 2014. Thesis, University of Debrecen. Accessed February 27, 2021. http://hdl.handle.net/2437/191906.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Farkas, Gergő. “ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz .” 2014. Web. 27 Feb 2021.

Vancouver:

Farkas G. ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz . [Internet] [Thesis]. University of Debrecen; 2014. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/2437/191906.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Farkas G. ICP-MS mérések optimálása mikroanalitikai vizsgálatokhoz . [Thesis]. University of Debrecen; 2014. Available from: http://hdl.handle.net/2437/191906

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Jouini, Ameur. Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges.

Degree: Docteur es, Chimie théorique, physique, analytique, 2017, Nantes

URL: http://www.theses.fr/2017NANT4063

►

La surveillance radiologique de l’environnement est un enjeu majeur pour étudier l Impact des activités industrielles et humaines mettant en œuvre des substances radioactives. Umalyse… (more)

▼

La surveillance radiologique de l’environnement est un enjeu majeur pour étudier l Impact des activités industrielles et humaines mettant en œuvre des substances radioactives. Umalyse de l:tImet Pu présents à l’échelle des ultra-traces dans les sols et les sédiments (- mBq.kg-1) est souvent menée par spectrométrie (après séparation chimique. Ces méthodes souffrent de plusieurs inconvénients. Les objectifs de cette thèse sont par conséquent de simplifier la méthode de séparation et d'obtenir une limite de détection basse et un temps d’analyse relativement court en utilisant lICPMS-HR couplé au système d’introduction Apex-Q/ACM. Sur la base des données de la littérature, une méthode chimique utilisant une seule résine d’extraction chromatographique (DGA) est proposée pour isoler les concentrations ultra-traces d’Am et de Pu des différents types d'éléments interférents. La méthodologie proposée a été évaluée avec des solutions synthétiques avant l'utilisation de solutions de lixiviation d’échantillons préalablement analysés par spectrométrie alpha. La méthode retenue demande plusieurs procédure d’élution pour pouvoir séparer les majeurs, les interférents isobariques, les lanthanides, l’uranium et le thorium. Des rendements de chimie supérieurs à 90% pour Am et 60% pour Pu ont pu être mesurés. La robustesse de la méthode d’analyse a été validée avec un standard de référence certifié (AIEA-38S) .Enfin, le protocole analytique d’isolation et de dosage des ultra-traces d241Am et de 239Pu par ICP-MS-HR solution a été appliqué à des échantillons de sédiments échantillonnés dans l’estuaire de la Loire pour caractériser L’état radiologique du fleuve.

Radiological monitoring of the environment is a key issue for studying the impact of industrial and human activities using radioactive substances. The analysis of Am and Pu present at ultra-trace concentrations in soils and sediments (-mBq.kg-l) is often carried out by spectrometry after chemical separation. This procedure suffers from several drawbacks (multi-step separation process and long coun.tingtime). The objectives of this PhD are consequently simplify separation process and to achieve a low limit of detection with a relatively short analysis time using a high-resolution plasma source mass spectrometer HR-ICP-MScoupled to the introduction system Apex-Q/ACM. Base on literature data, a chemical methodology using a single column extraction chromatography resin (DGA) is proposed for isolating ultra-trace concentrations of Am and Pu from different types of interfering elements. The proposed methodology is assessed with synthetic solutions prior to the use of real leaching solutions previously analyzed by alpha spectrometry. The chosen method requires several elution procedures in order to separate the majors element, isobaric interferes, lanthanides, uranium and thorium. Recovery yields greater than 90% for Am and 60% for Pu were determined. The robustness of the analytical method was validated with a certified reference standard sample (IAEA-385). Finally, the analytical…

Advisors/Committee Members: Montavon, Gilles (thesis director).

Subjects/Keywords: Résine DGA; ICP-MS-HR

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APA (6^th Edition):

Jouini, A. (2017). Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges. (Doctoral Dissertation). Nantes. Retrieved from http://www.theses.fr/2017NANT4063

Chicago Manual of Style (16^th Edition):

Jouini, Ameur. “Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges.” 2017. Doctoral Dissertation, Nantes. Accessed February 27, 2021. http://www.theses.fr/2017NANT4063.

MLA Handbook (7^th Edition):

Jouini, Ameur. “Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges.” 2017. Web. 27 Feb 2021.

Vancouver:

Jouini A. Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges. [Internet] [Doctoral dissertation]. Nantes; 2017. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2017NANT4063.

Council of Science Editors:

Jouini A. Méthodes et techniques de détection, identification et quantification des ultra-traces, application aux émetteurs alpha (Am et Pu) : Speciation of Tritium and carbon 14 with organic molecules in nuclear plant discharges. [Doctoral Dissertation]. Nantes; 2017. Available from: http://www.theses.fr/2017NANT4063

University of North Texas

18. DeLeon, Vallerie H. Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis.

Degree: 2012, University of North Texas

URL: https://digital.library.unt.edu/ark:/67531/metadc177191/

► In this research, electrochemical methods are used to synthesize the inorganic fraction of bone, hydroxyapatite, for application in biological implants and as a calibration material… (more)

▼ In this research, electrochemical methods are used to synthesize the inorganic fraction of bone, hydroxyapatite, for application in biological implants and as a calibration material for elemental analysis in human bone. Optimal conditions of electrochemically deposited uniform apatite coatings on stainless steel were investigated. Apatite is a ceramic with many different phases and compositions that have beneficial characteristics for biomedical applications. Of those phases hydroxyapatite (HA) is the most biocompatible and is the primary constituent of the inorganic material in bones. HA coatings on metals and metal alloys have the ability to bridge the growth between human tissues and implant interface, where the metal provides the strength and HA provides the needed bioactivity. The calcium apatites were electrochemically deposited using a modified simulated body fluid adjusted to pH 4-10, for 1-3 hours at varying temperature of 25-65°C while maintaining cathodic potentials of -1.0 to -1.5V. It was observed that the composition and morphology of HA coatings change during deposition by the concentration of counter ions in solution, pH, temperature, applied potential, and post-sintering. The coatings were characterized by powder x-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. The precipitated powders from the experiment were also characterized, with results showing similarities to biological apatite. There is a need for quantitative elemental analysis of calcified biological matrices such as bone and teeth; however there are no suitable calibration materials commercially available for quantitative analysis. Matrix-matched standards are electrochemically synthesized for LA-ICP-MS analysis of human bone. The synthetic bioapatite is produced via a hydrothermal electrochemical process using a simulated body fluid solution to form hydroxyapatite. Additional bioapatite standards are synthesized containing trace amounts of metals. The x-ray diffraction of the synthesized standards shows an increase in cell volume for the crystal structure from 0.534 to 0.542 nm3 with the substitution of metals into the crystal structure. The analyte concentration and recoveries for the synthesized standards and reference materials were determined by ICP-MS with % RSD below 6.3% and limits of detection below 1.2 ng/mL for trace metals. The electrochemically synthesized bioapatite was also compared to standard reference materials with X-ray diffraction, FTIR, and Raman spectroscopy. Optimum laser ablation parameters were determined for the standards and human bone. The synthesized standards were homogeneous and the reproducibility for the isotope concentrations determined by LA-ICP-MS was between 3-10 % compared to 10-35% for SRM 1486 Bone Meal and SRM 1486 Bone Ash. A quantitative method has been developed for 2D mapping using LA-ICP-MS and the matrix-matched standards of metal-doped biopaptite to characterize metal concentrations in human bone. Laser ablation parameters for the… Advisors/Committee Members: Golden, Teresa D., Verbeck, Guido F., Petros, Rob A., D'Souza, Nandika Anne, 1967-.

Subjects/Keywords: Electrochemistry; bioapatite; LA-ICP-MS

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APA (6^th Edition):

DeLeon, V. H. (2012). Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis. (Thesis). University of North Texas. Retrieved from https://digital.library.unt.edu/ark:/67531/metadc177191/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

DeLeon, Vallerie H. “Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis.” 2012. Thesis, University of North Texas. Accessed February 27, 2021. https://digital.library.unt.edu/ark:/67531/metadc177191/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

DeLeon, Vallerie H. “Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis.” 2012. Web. 27 Feb 2021.

Vancouver:

DeLeon VH. Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis. [Internet] [Thesis]. University of North Texas; 2012. [cited 2021 Feb 27]. Available from: https://digital.library.unt.edu/ark:/67531/metadc177191/.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

DeLeon VH. Investigation of Novel Electrochemical Synthesis of Bioapatites and Use in Elemental Bone Analysis. [Thesis]. University of North Texas; 2012. Available from: https://digital.library.unt.edu/ark:/67531/metadc177191/

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

19. Liu, Heng-Yan. Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS.

Degree: Master, Chemistry, 2013, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0630113-223124

► First research, speciation of arsenic and selenium in human urine was carried out using ion chromatography (IC) for separation and inductively coupled mass spectrometry (ICP-MS)… (more)

▼ First research, speciation of arsenic and selenium in human urine was carried out using ion chromatography (IC) for separation and inductively coupled mass spectrometry (ICP-MS) for detection. The arsenic and selenium species studied were arsenite [As(III)], arsenate [As(V)], monomethylarsonic acid (MMA), dimethylarsinic acid (DMA), arsenobetaine (AsB) and selenite [Se(IV)], selenate [Se(IV)]. Chromatographic separation of all the species was achieved in <11 min in gradient elution mode using (NH4)2CO3 and methanol at pH 8.8. The outlet of the IC column was directly connected to the nebulizer of ICP-MS for the determination of arsenic and selenium. The speciation of arsenic and selenium have been carried out in human urine samples. The recoveries from spiked samples were in the range of 91â109%. The unknown compounds detected in human urine were identified by coupling IC directly with electrospray ionizationâmass spectrometry (ESI-MS). Selenosugar was identified in human urine. The limits of detection were in the range of 0.008â0.015 ng mLâ1 for various arsenic species and 0.022-0.030 ng mLâ1 for various selenium species based on peak height. Second research, a HPLC separation procedure has been developed for the speciation of Cr(III), Cr(VI) and As(III), As(V), DMA, MMA, AsB in dietary supplement samples. The species were separated on anion-exchange LC in gradient elution mode. The mobile phase consisting of EDTA and (NH4)2CO3 at pH 8.8, operated in a linear ramp, yielded well resolved chromatograms of all the species within 14 min with retention times of less than 2% RSD. The analyses were carried out using dynamic reaction cellinductively coupled plasma-mass spectrometer (DRC-ICP-MS). The DRC conditions have also been optimized to obtained interference free measurements of 52Cr, 53Cr and 75As, which were otherwise interfered by: 35Cl16O1H, 40Ar12C on 52Cr; 37Cl16O, 40Ar13C, 40Ar12C1H on 53Cr; and 40Ar35Cl on 75As. The detection limits of the procedure were 0.008-0.019 ng As mL-1 and 0.084-0.087 ng Cr mL-1. The accuracy of the method has been validated by comparing the sum of the concentrations obtained for individual species with total concentration of the elements in NRCC SRM DORM-3 Fish Protein. The method has also been applied on three real samples, diabetic support formula tablets, diabetic support formula dietary fiber and Spirulina tablets , in which case the comparison has been made with total concentrations determined after complete dissolution of the samples. In this study, a microwave-assisted extraction method was used for the extraction of chromium and arsenic species from dietary supplemen samples. The extraction efficiency was better than 88% and the recoveries from spiked samples were in the range of 91â103%. Advisors/Committee Members: Wei-Lung Tseng (chair), Shiuh-jen Jiang (committee member), Shou-Mei Wu (chair).

Subjects/Keywords: ESI-MS; Arsenic; Selenium; Chromium; ICP-MS

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APA (6^th Edition):

Liu, H. (2013). Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0630113-223124

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Liu, Heng-Yan. “Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS.” 2013. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0630113-223124.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Liu, Heng-Yan. “Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS.” 2013. Web. 27 Feb 2021.

Vancouver:

Liu H. Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS. [Internet] [Thesis]. NSYSU; 2013. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0630113-223124.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Liu H. Identification and quantification of arsenic and selenium species in human urine and chromium and arsenic species in dietary supplement by HPLC-ICP-MS and HPLC-ESI-MS. [Thesis]. NSYSU; 2013. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0630113-223124

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

20. Wu, Cheng-han. ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry.

Degree: Master, Chemistry, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0623116-000718

► The first research, the determination of S, As, Cd, Hg and Pb in fuels by USS-ETV-ICP-MS was described. Palladium and tartaric acid was used as… (more)

▼ The first research, the determination of S, As, Cd, Hg and Pb in fuels by USS-ETV-ICP-MS was described. Palladium and tartaric acid was used as the modifier to enhance the ion signals. In the experiment procedure, the operation conditions, sample concentration, DRC system conditions and spectral interference were studied. Vaporization temperature and ash temperature was set as 2100 °C and 380 °C. Oxygen was used in the dynamic reaction cell to convert 32S+ to 32S16O+, that can reduce the interference causing by 16O16O+. Finally, the method has been applied to determine S, As, Cd, Hg and Pb in SDF-3X, a sulfur standard solution in diesel fuel and three different kinds of fuels by using standard addition method and ARIDUS-DRC-ICP-MS method. After digestion, compare with the quantitative results obtained from the conventional pneumatic nebulizer to verify the feasibility. The method detection limit estimated from standard addition curves was 39, 0.07, 0.10, 0.07, 0.07 ng g-1 for S, As, Cd, Hg and Pb respectively. The second research, determination of dissolved silver(I) and silver nanoparticles based on single particle detection by ICP-MS was studied. ICP-MS is unique in its ability to provide information on nanoparticle size, size distribution, elemental composition, and number concentration in a single, rapid analysis. In the experiment procedure, the influences of number of readings were studied. In order to get enough pulse signals, 24000 readings were chosen. The study found that we should set the Minimum Noise Threshold to eliminate the instrument background noise. Through pneumatic nebulizers and acid digestion, we can validate the results. Finally, environmental water being added with silver nanoparticles was tested to obtain a similar size distribution and number concentration that demonstrates the feasibility of simultaneously detecting nanoparticles and metal ions. Advisors/Committee Members: Yen-Ling Chen (chair), Shiuh-jen Jiang (committee member), Yeou-Lih Huang (chair).

Subjects/Keywords: ETV-ICP-MS; SP-ICP-MS; multi-elemental analysis; silver nanoparticle

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APA (6^th Edition):

Wu, C. (2016). ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0623116-000718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wu, Cheng-han. “ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry.” 2016. Thesis, NSYSU. Accessed February 27, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0623116-000718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wu, Cheng-han. “ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry.” 2016. Web. 27 Feb 2021.

Vancouver:

Wu C. ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Feb 27]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0623116-000718.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wu C. ä¸ãDetermination of trace element in fuels by using slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry äºãDetermination of dissolved silver(I) and silver nanoparticles based on single particle detection by inductively coupled plasma mass spectrometry. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0623116-000718

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade Estadual de Campinas

21. Mataveli, Lidiane Raquel Verola, 1983-. Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system.

Degree: 2013, Universidade Estadual de Campinas

URL: http://repositorio.unicamp.br/jspui/handle/REPOSIP/248607

► Abstract: This work consisted of comparative metallomics studies of transgenic (T) and nontransgenic (NT) soybean seeds. To that end, T and NT seeds were compared… (more)

▼ Abstract: This work consisted of comparative metallomics studies of transgenic (T) and nontransgenic (NT) soybean seeds. To that end, T and NT seeds were compared at first taking into account: the total concentration of the elements, the elements behavior during extraction using sequential fractionation, and bioacessibility of the elements after simulated gastrointestinal digestion procedure (in vitro). Preliminary analyzes were done using ICP-MS with quadrupole mass analyzer, and the subsequent analysis using high-resolution inductively coupled plasma mass spectrometry, (HR-ICP-MS). 25 elements were determined at concentrations ranging from 1 ng g up to %. It was observed that T and NT soybean seeds exhibit statistically significant differences in the concentrations of Cu, Fe and Sr, the first two having higher concentrations in the T seeds, and the last with the highest concentration in soybeans NT. These results were also reflected in the contents of these elements in aqueous extracts and residues obtained through sequential fractionation. Also, the contributions of bioaccessible fractions of Cu, Fe and other elements (Mn, S, Zn) to the total content of the elements in T soybean seeds were higher than those found in NT soybean seeds. Subsequently, studies were continued using bidimensional liquid chromatography, the first dimension consisting of size exclusion chromatography (SEC) and the second dimension of anion exchange chromatography (AEX). In the first chromatographic dimension three fractions containing metals were identified using hyphenation SEC-ICP-MS, the first corresponding to molar masses between 38.1 and 181.1 kDa, the second corresponding to molar masses between 8.2 and 17.2 kDa and the third fraction corresponding to molar masses between 0.4 and 3.8 kDa. The three identified fractions were separated and lyophilized, and again separated using anion exchange chromatography (AEX). Metals were found in all the separated fractions by SEC: three sub-fractions of the first fraction, a subfraction in the second fraction and three sub-fractions in the third fraction. These peaks were collected, lyophilized, digested and taken to the mass spectrometer for protein identification. 33 proteins were identified, and, among them, two proteins previously related to metals were found: seed lipoxygenase 1 and b-conglycinin. After chromatographic separation in the second dimension, the resultant subfractions were lyophilized and subjected to a third separation dimension using onedimensional polyacrylamide gel electrophoresis (SDS-PAGE). After the separation, the bands were cut out and digested to examine the metals contained therein, highlighting the results obtained for Fe, which was quantified in the bands of the sub-fraction where the peak of the element is found in the analysis by ICP-AEX - MS. Also, the bands were digested triptically to identify the proteins, and once again proteins associated to metals were identified: 3-lipoxygenase A chain (Soybean) complex with 13 (S)-Hydroperoxy-9 (Z), 11 (… Advisors/Committee Members: UNIVERSIDADE ESTADUAL DE CAMPINAS (CRUESP), Arruda, Marco Aurelio Zezzi, 1965- (advisor), Tasic, Ljubica, 1970- (coadvisor), Universidade Estadual de Campinas. Instituto de Química (institution), Programa de Pós-Graduação em Química (nameofprogram), Júnior, Fernando Barbosa (committee member), Padilha, Pedro de Magalhães (committee member), Cantú, Ana Valéria Colnaghi Simionato (committee member), Kubota, Lauro Tatsuo (committee member).

Subjects/Keywords: Soja; Metalômica; HPLC-ICP-MS; Soybean; Metallomics; HPLC-ICP-MS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mataveli, Lidiane Raquel Verola, 1. (2013). Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system. (Thesis). Universidade Estadual de Campinas. Retrieved from http://repositorio.unicamp.br/jspui/handle/REPOSIP/248607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Mataveli, Lidiane Raquel Verola, 1983-. “Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system.” 2013. Thesis, Universidade Estadual de Campinas. Accessed February 27, 2021. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Mataveli, Lidiane Raquel Verola, 1983-. “Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system.” 2013. Web. 27 Feb 2021.

Vancouver:

Mataveli, Lidiane Raquel Verola 1. Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system. [Internet] [Thesis]. Universidade Estadual de Campinas; 2013. [cited 2021 Feb 27]. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/248607.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Mataveli, Lidiane Raquel Verola 1. Metalômica comparativa de soja [Glycine max (L.) Merrill] transgênica e não-transgênica utilizando sistema multidimensional de separação: Metalômica comparativa de soja [Glycine max (L.) [Glycine max (L.) merrill] using a multidimensional separation system. [Thesis]. Universidade Estadual de Campinas; 2013. Available from: http://repositorio.unicamp.br/jspui/handle/REPOSIP/248607

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Iowa State University

22. Witte, Travis. Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates.

Degree: 2011, Iowa State University

URL: https://lib.dr.iastate.edu/etd/10370

► Ongoing issues that affect the continued maturation of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) are studied. Spectral interferences in the form of polyatomic ions can… (more)

Subjects/Keywords: ICP-MS; LA-ICP-MS; particulates; polyatomics; Chemistry

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APA (6^th Edition):

Witte, T. (2011). Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/10370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Witte, Travis. “Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates.” 2011. Thesis, Iowa State University. Accessed February 27, 2021. https://lib.dr.iastate.edu/etd/10370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Witte, Travis. “Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates.” 2011. Web. 27 Feb 2021.

Vancouver:

Witte T. Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates. [Internet] [Thesis]. Iowa State University; 2011. [cited 2021 Feb 27]. Available from: https://lib.dr.iastate.edu/etd/10370.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Witte T. Laser ablation-inductively coupled plasma-mass spectrometry: Examinations of the origins of polyatomic ions and advances in the sampling of particulates. [Thesis]. Iowa State University; 2011. Available from: https://lib.dr.iastate.edu/etd/10370

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

The Ohio State University

23. Jiao , Shi. Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS.

Degree: PhD, Chemistry, 2017, The Ohio State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503312519121577

► Mass dependent matrix effects due to high concentrations of concomitant elements in inductively coupled plasma-mass spectrometry (ICP-MS) (loss of analyte sensitivity increases as the analyte… (more)

▼ Mass dependent matrix effects due to high concentrations of concomitant elements in inductively coupled plasma-mass spectrometry (ICP-MS) (loss of analyte sensitivity increases as the analyte ion mass decreases and the matrix ion increases) are commonly thought to be due to space charge repulsion of ions in the positive ion beam formed downstream of the interface between the atmospheric pressure ICP and the mass filter. This widely accepted conclusion is based on a comprehensive set of measurements made using a first generation ICP-MS in 1987. In this thesis research the first such comprehensive sets of measurements were made using three more recent generation ICP-MS instruments, each with unique ion optics. Using an instrument with ion optics consisting of a grounded stop, a single positive cylindrical lens and a grounded aperture prior to the RF quadrupole matrix effects for equimolar matrix element concentrations were more severe as the matrix element mass increased. However, the severity of matrix effects depended much less on analyte ion mass than expected. When ions were accelerated downstream of the skimmer using an extraction lens held at -2 kV in an ICP Sector Field MS, the matrix-induced severity of analyte ion sensitivity loss was generally similar for all analyte ions. Using an instrument with ion optics that causes the ion beam to turn 90° showed an unusual pattern of unexpectedly severe matrix-induced sensitivity decreases for mid-mass and high mass analyte ions in the presence of Cu, Y, In, or Cs when measured with experimental parameters in the standard (vented) mode. The unusual behavior was found to be dependent on the voltages on the collision/reaction cell and quadrupole rod offset and could be eliminated by choosing voltages typically used when the collision/reaction cell is used for kinetic energy discrimination or ion-molecule reactions. The results of these comprehensive sets of measurements have two major implications. (1) The generally accepted space-charge model for ICP-MS matrix effects is inadequate to explain the experimental results. (2) While it has long been thought that internal standards must have similar masses as the analyte ions, therefore requiring multiple internal standards for multi-element analysis, a single internal standard can be effective in many cases. In addition, matrix effects using these more recent generation ICP-MS instruments are much more severe, especially for mid- to high-mass analytes, than when the first generation instrument was used. This may be due to the much higher sensitivity provided by the more recent generation ICP-MS instruments, consistent with a higher positive ion beam current.It has been suggested that accelerating the ions downstream of the skimmer could possibly alleviate matrix effects. However, the severity of matrix effects using ICP-Sector Field-MS was similar as those observed using instrument with a single lens in the ion optics. Reducing the nebulizer gas flow rate is one pontential way to reduce matrix effects (<20-30% change in… Advisors/Committee Members: Olesik, Susan (Advisor), Olesik, John (Advisor).

Subjects/Keywords: Chemistry; matrix effects, ICP-MS, CE-ICP-MS, nanoparticles

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jiao , S. (2017). Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS. (Doctoral Dissertation). The Ohio State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=osu1503312519121577

Chicago Manual of Style (16^th Edition):

Jiao , Shi. “Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS.” 2017. Doctoral Dissertation, The Ohio State University. Accessed February 27, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1503312519121577.

MLA Handbook (7^th Edition):

Jiao , Shi. “Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS.” 2017. Web. 27 Feb 2021.

Vancouver:

Jiao S. Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS. [Internet] [Doctoral dissertation]. The Ohio State University; 2017. [cited 2021 Feb 27]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503312519121577.

Council of Science Editors:

Jiao S. Characterization of Mass Dependent Matrix Effects in Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Characterization of Engineered Nanoparticles using Surfactant Enhanced Capillary Electrophoresis-ICP-MS. [Doctoral Dissertation]. The Ohio State University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=osu1503312519121577

24. Garcia Montoto, Victor. Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd.

Degree: Docteur es, Chimie analytique, 2020, Pau

URL: http://www.theses.fr/2020PAUU3009

►

Ce manuscrit de thèse intègre l'application de plusieurs méthodologies analytiques à l'analyse de spéciation des matières premières renouvelables et des fractions de pétrole lourd. Des… (more)

▼

Ce manuscrit de thèse intègre l'application de plusieurs méthodologies analytiques à l'analyse de spéciation des matières premières renouvelables et des fractions de pétrole lourd. Des techniques de séparation telles que la chromatographie par perméation de gel (GPC) et la chromatographie en phase liquide supercritique (SFC) ont été combinées avec la détection élémentaire fournie par la spectrométrie de masse haute résolution à plasma à couplage inductif (ICP-MS), afin d'obtenir une empreinte digitale de ces espèces d’intérêt, basé sur leur volume hydrodynamique, présent dans les échantillons à matrices complexes.La combinaison de ces techniques de séparation avec l’ICP-MS n'a pas été une tâche facile. Cependant, afin de fournir à la plate-forme de chimie analytique de nouvelles solutions pour l'analyse de spéciation d'échantillons complexes (1), une alternative bon marché aux nébuliseurs à consommation totale actuelle, produite via l'impression 3D et dont le capillaire a été construit en PEEK, a été développé et validé pour l'analyse des éléments trace dans les matrices organiques via GPC-ICP-MS et (2) une nouvelle interface a été conçue et optimisée pour l'analyse des éléments trace via SFC-ICP-MS. Bien que des résultats très prometteurs aient été obtenus, de nouvelles expérimentations doivent être menées avec ces deux méthodologies afin de mieux comprendre les espèces inorganiques présentes dans les matières premières renouvelables et les bio-huiles.La distribution en taille des espèces de soufre, de nickel et de vanadium dans les fractions de résidus atmosphériques a été obtenue via des analyses GPC-ICP-HRMS afin de suivre et de comprendre leur évolution au cours de deux processus industriels importants destinés à convertir ces fractions de pétrole lourd en carburants de transport: l'hydrodémétallisation et l'hydrodésulfuration. En outre, les distributions de tailles des espèces contenant du phosphore, du sodium, du fer, du magnésium et du soufre dans les huiles de pyrolyse lignocellulosique et les charges d'acide gras ont également été obtenues, démontrant que des agrégats de haut poids moléculaire se forment dans ces échantillons complexes lorsqu'ils sont stockés.Des méthodologies alternatives pour l'analyse des matières premières renouvelables ont été testées. L'utilisation de la vaporisation électrothermique couplée à la spectroscopie d'émission optique à plasma à couplage inductif (ETV-ICP-MS) a fourni des résultats très prometteurs. Une méthodologie qui ne nécessite pas l'utilisation de gaz fréon-R12 a été optimisée et validée pour l'analyse totale de huit éléments trace dans des échantillons complexes. De plus, la répartition des espèces contenant des éléments trace tels que P, Na, Mg et Al entre autres, en fonction de leurs températures de vaporisation, a été obtenue.

This thesis incorporates the application of several analytical methodologies to the speciation analysis of renewable feedstocks and petroleum heavy oil fractions. Separation techniques such as gel permeation chromatography (GPC) and…

Advisors/Committee Members: Bouyssière, Brice (thesis director).

Subjects/Keywords: Chimie analytique; ICP-MS; SFC-ICP-MS; GPC-ICP-MS; ETV-ICP-OES; Analyse de spéciation; Matières premières renouvelables; Huiles non conventionnelles; ICP-MS; GPC-ICP-MS; GPC-ICP-MS; ETV-ICP-OES; Analytical Chemistry; Speciation Analysis; Renewable feedstocks; Unconventional oils; 543

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Garcia Montoto, V. (2020). Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd. (Doctoral Dissertation). Pau. Retrieved from http://www.theses.fr/2020PAUU3009

Chicago Manual of Style (16^th Edition):

Garcia Montoto, Victor. “Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd.” 2020. Doctoral Dissertation, Pau. Accessed February 27, 2021. http://www.theses.fr/2020PAUU3009.

MLA Handbook (7^th Edition):

Garcia Montoto, Victor. “Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd.” 2020. Web. 27 Feb 2021.

Vancouver:

Garcia Montoto V. Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd. [Internet] [Doctoral dissertation]. Pau; 2020. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2020PAUU3009.

Council of Science Editors:

Garcia Montoto V. Speciation analysis in renewable feedstocks and petroleum heavy oil fractions : Analyse de spéciation des matières premières renouvelables et fractions de pétrole lourd. [Doctoral Dissertation]. Pau; 2020. Available from: http://www.theses.fr/2020PAUU3009

25. Pérez, Anne. Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron.

Degree: Docteur es, Chimie, 2015, Université Paris-Est

URL: http://www.theses.fr/2015PESC1153

►

Les processus d'altération des verres basaltiques constituant le pourtour vitrifié des laves en coussins influencent les grands cycles géochimiques terrestres puisqu'ils contribuent à l'évolution de… (more)

▼

Les processus d'altération des verres basaltiques constituant le pourtour vitrifié des laves en coussins influencent les grands cycles géochimiques terrestres puisqu'ils contribuent à l'évolution de la composition des océans et de la croûte océanique et sont des acteurs de la dynamique du climat. Au regard de la diversité des communautés bactériennes peuplant ces aquifères, il est admis que l'altération de ces roches est un processus biologiquement catalysé. Toutefois, peu d'études ont cherché à quantifier cette contribution bactérienne, au regard de la diversité et de la complexité des interactions possibles. Ce travail vise à expliciter et quantifier l'influence des ligands bactériens et notamment des sidérophores sur les processus d'altération, en décomposant les systèmes naturels en situations expérimentales simplifiées. Dans cette optique, trois verres basaltiques modèles, porteurs ou non de Fe(II)/Fe(III), ont été synthétisés. Des expériences de dissolution de ces verres, à pH neutre et à 25 C, ont été réalisées (1) en conditions abiotiques (solutions de sidérophores purs, milieu de culture stérile), (2) en présence de la souche Pseudomonas aeruginosa mais en confinant le verre dans des membranes de dialyse, (3) au contact direct de la souche. En parallèle de ces expériences, des analyses des solides ont été menées et un protocole d'analyse verticale de la composition d'un verre altéré par LA-ICP-MS a notamment été mis au point. L'analyse des solutions/milieux d'altération par ICP-OES a permis d'évaluer les cinétiques et la stoechiométrie de la dissolution. Les expériences en conditions abiotiques révèlent qu'en présence de sidérophores, l'extraction préférentielle du fer structural (respectivement de l'aluminium pour un verre sans fer) via des réactions de complexation en surface des verres, est le moteur de la dissolution du réseau vitreux. Réciproquement, dans les cultures bactériennes, la production de sidérophore par Pseudomonas aeruginosa est déclenchée lorsque (1) aucun contact direct verre/bactérie n'est possible, (2) le fer est absent de l'environnement cellulaire, (3) certains métaux toxiques ou pouvant nuire aux métabolismes bactériens (typiquement l'aluminium) sont néanmoins présents et (4) le fer n'est disponible que sous sa forme réduite. Outre l'accélération de l'hydrolyse du réseau vitreux en présence de sidérophores, l'influence positive de la constitution d'un biofilm en surface des verres sur la dissolution de ces derniers a également été observée. Ces résultats mettent en évidence la forte affinité de la souche pour les verres basaltiques ainsi que le rôle central du fer, oxydé ou réduit, dans les mécanismes dégagés

The alteration of ocean basalts partly controls the composition of seawater and of the oceanic crust which in turn influences the Earth's mantle geochemistry and may also have a significant impact on Earth's climate over a geological timescale. Regarding the existence of an extensive subsurface biosphere within the basaltic basement of the uppermost oceanic crust, the…

Advisors/Committee Members: Rossano, Stéphanie (thesis director).

Subjects/Keywords: Verre basaltique; Bio-Altération; Icp-Oes; Sidérophore; La-Icp-Ms; Basaltic glass; Bio alteration; Icp-Oes; Siderophore; La-Icp-Ms

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Pérez, A. (2015). Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2015PESC1153

Chicago Manual of Style (16^th Edition):

Pérez, Anne. “Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron.” 2015. Doctoral Dissertation, Université Paris-Est. Accessed February 27, 2021. http://www.theses.fr/2015PESC1153.

MLA Handbook (7^th Edition):

Pérez, Anne. “Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron.” 2015. Web. 27 Feb 2021.

Vancouver:

Pérez A. Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron. [Internet] [Doctoral dissertation]. Université Paris-Est; 2015. [cited 2021 Feb 27]. Available from: http://www.theses.fr/2015PESC1153.

Council of Science Editors:

Pérez A. Bioalteration de verres basaltiques modèles : impact des sidérophores et rôle du fer : Bioalteration of basaltic model glasses : impact of siderophores and role of iron. [Doctoral Dissertation]. Université Paris-Est; 2015. Available from: http://www.theses.fr/2015PESC1153

Università Cattolica del Sacro Cuore

26. SPALLA, STEFANO. METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI.

Degree: 2008, Università Cattolica del Sacro Cuore

URL: http://hdl.handle.net/10280/249

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Il presente studio affronta il tema della rintracciabilità alimentare di prodotti agroalimentari, analizzando il caso del pomodoro da industria, cercando di trovare degli indicatori chimici… (more)

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Il presente studio affronta il tema della rintracciabilità alimentare di prodotti agroalimentari, analizzando il caso del pomodoro da industria, cercando di trovare degli indicatori chimici (markers) che siano in grado di discriminare prodotti provenienti da aree geografiche differenti. Viene quindi affrontato il tema della tipicità che consiste nel legame esistente tra l'alimento e il territorio nel quale viene prodotto. I parametri chimici che vengono indagati sono elementi appartenenti al gruppo delle terre rare (o serie dei lantanidi) e dei rapporti isotopici degli elementi pesanti quali lo Stronzio. La determinazione analitica delle terre rare nel pomodoro è stata effettuata con ICP-MS e HR-ICP-MS (Inductivity Coupled Plasma Mass Spectrometry, Hight Resolution Inductivity Coupled Plasma Mass Spectrometry). I rapporti isotopici dello Stronzio sono stati determinati con la tecnica TIMS (Thermal-Ionization Mass Spectroscopy) Le tecniche analitiche utilizzate hanno permesso di determinare con precisione e accuratezza tutti gli elementi appartenenti al gruppo delle terre rare nei comparti della pianta di pomodoro e nel terreno. La misura dei rapporti isotopici dello stronzio ha permesso di discriminare prodotti provenienti da aree geografiche differenti.

Food traceability systems have a broader scope and aim to document the history of a product along the entire production chain from primary raw materials to the final consumable product. the present work has looked at ways of detecting rare earth and strontium isotope abundance ratios. It is fundamental to have knowledge of the REE concentrations of the soil where the plants are grown and the distribution of the REEs in the different parts of the plants: roots, stems, leaves, and berries. Tomato is one of the most widely grown vegetables in the world. The analytical procedure, using inductively coupled mass spectrometry (ICP-MS) and HR-ICP-MS proved to be suitable for the determination of REEs in plants and soil, and was validated using certified samples. Strontium isotope ratio is an important parameter allowing the discrimination of foods coming from different geographical origins. Very high precision is usually reached with Thermal Ionization Mass Spectrometer (TIMS). The analytical techniques have permitted to determine all REEs elements in compartments of tomato plants. The described method point out the measurement of the 87Sr/86Sr ratio as a very important parameter for the discrimination of tomato from different geographical origins, even if the present experimental work treating a limited number of samples have to be considered as a “first step”.

Advisors/Committee Members: SILVA, SANDRO.

Subjects/Keywords: AGR/13: CHIMICA AGRARIA; tracciabilità degli alimenti, Icp-ms, icp-sfms, tims, pomodoro, food traceability, icp-ms, icp-sfms, tims, tomato

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

SPALLA, S. (2008). METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI. (Doctoral Dissertation). Università Cattolica del Sacro Cuore. Retrieved from http://hdl.handle.net/10280/249

Chicago Manual of Style (16^th Edition):

SPALLA, STEFANO. “METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI.” 2008. Doctoral Dissertation, Università Cattolica del Sacro Cuore. Accessed February 27, 2021. http://hdl.handle.net/10280/249.

MLA Handbook (7^th Edition):

SPALLA, STEFANO. “METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI.” 2008. Web. 27 Feb 2021.

Vancouver:

SPALLA S. METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI. [Internet] [Doctoral dissertation]. Università Cattolica del Sacro Cuore; 2008. [cited 2021 Feb 27]. Available from: http://hdl.handle.net/10280/249.

Council of Science Editors:

SPALLA S. METODI CHIMICI PER IL RICONOSCIMENTO DELL'ORIGINE GEOGRAFICA DEGLI ALIMENTI. [Doctoral Dissertation]. Università Cattolica del Sacro Cuore; 2008. Available from: http://hdl.handle.net/10280/249

Pontifical Catholic University of Rio de Janeiro

27. EIDER FERNANDO ALVES DOS SANTOS. [pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS.

Degree: 2011, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18855

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[pt] Os elementos de maior interesse no biodiesel são os resíduos de catálise do processo produtivo (Na e K), os delimitados por legislação ambiental vigente… (more)

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[pt] Os elementos de maior interesse no biodiesel são os resíduos de catálise do processo produtivo (Na e K), os delimitados por legislação ambiental vigente (S, por exemplo) e os elementos venenosos aos catalisadores automotivos (Pb, V, P e Hg); porém, pesquisas orientadas no sentido de produzir metodologias analíticas para a realização de determinações em biodiesel vêm buscando um mapeamento elementar mais completo do combustível. Técnicas como ICP OES, ICP-MS com célula de reação/colisão, FAAS, GFAAS têm sido usualmente empregadas em determinações diretas ou não, mas ainda existem combinações de preparo de amostra e técnica analítica a ser pesquisadas. O presente trabalho teve como objetivo a avaliação de um sistema de decomposição ácida de amostra de biodiesel, visando à decomposição ácida da maior quantidade possível de matéria orgânica presente na matriz e a consequente determinação em ICP-MS. O processo de decomposição ácida, avaliado pela concentração de carbono residual, determinado em ICP OES, não requer grandes quantidades nem de energia térmica e nem do agente oxidante e ainda permite, após processo de redução da matriz nítrica remanescente, uma determinação direta em ICP-MS utilizando padrões aquosos na confecção das curvas e sem a necessidade de célula de colisão/reação. Foram determinados Ag, Ba, Cu, Mn, Mo, Ni, Ti e Zn em amostras de biodiesel de 4 matérias-primas diferentes e em duas amostras certificadas de biodiesel (NIST) e, tanto os resultados de recuperação, que variaram entre 90 e 110 por cento, quanto o comparativo realizado com as metodologias por ICP OES, validaram os resultados.

[en] Biodiesel appeared in this scenario as an alternative short-term, compatible with the current technologies and without the necessity of major modifications. The elements of greatest interest are the residue of catalyst of the production process (Na, K), those limited by environmental regulations (S) and those that act like poisons for the catalyst system of vehicles (Pb, V, P and Hg), but researches aimed to produce analytical methodologies for determinations in Biodiesel, have sought to achieve a multielement mapping of the fuel (Woods ET AL, 2007). Techniques like ICP OES, ICP-MS with reaction cell, FAAS, GFAAS have been usually used in direct or indirect determinations, but still there are combinations of sample preparation and analytical techniques to be studied. This present work sought to evaluate an analyzing system in ICP-MS after a digestion procedure looking for the minimal quantity of organic matter at the final sample. The preliminary results showed that the digestion process, evaluated by the concentration of residual carbon determined by ICP OES, it can be fast and does not require large amounts of energy and oxidizing agent. And still allow, after reducing the nitric matrix, the use of aqueous standards at the calibration curve. It was monitored Ag, Ba, Cu, Mn, Mo, Ni, Ti and Zn in 4 different sources of raw material for biodiesel, and the method was validated by the analysis of two NIST…

Advisors/Committee Members: TATIANA DILLENBURG SAINT PIERRE.

Subjects/Keywords: [pt] ICP OES; [en] ICP OES; [pt] ICP-MS; [en] ICP-MS; [pt] BIODIESEL; [en] BIODIESEL

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

SANTOS, E. F. A. D. (2011). [pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18855

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

SANTOS, EIDER FERNANDO ALVES DOS. “[pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS.” 2011. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed February 27, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18855.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

SANTOS, EIDER FERNANDO ALVES DOS. “[pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS.” 2011. Web. 27 Feb 2021.

Vancouver:

SANTOS EFAD. [pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2011. [cited 2021 Feb 27]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18855.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

SANTOS EFAD. [pt] DESENVOLVIMENTO DE MÉTODO PARA DETERMINAÇÃO MULTIELEMENTAR EM BIODIESEL POR ICP-MS. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2011. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=18855

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Duquesne University

28. Fahrenholz, Timothy. Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure.

Degree: PhD, Chemistry and Biochemistry, 2011, Duquesne University

URL: https://dsc.duq.edu/etd/529

► Previous work by our research group demonstrated that quantitative chemical analysis of analytes, such as mercury and chromium species, in environmental matrices could be successfully… (more)

Subjects/Keywords: Autism; ICP-MS; Isotope dilution; LC/MS/MS; Mass spectrometry; Speciation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Fahrenholz, T. (2011). Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure. (Doctoral Dissertation). Duquesne University. Retrieved from https://dsc.duq.edu/etd/529

Chicago Manual of Style (16^th Edition):

Fahrenholz, Timothy. “Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure.” 2011. Doctoral Dissertation, Duquesne University. Accessed February 27, 2021. https://dsc.duq.edu/etd/529.

MLA Handbook (7^th Edition):

Fahrenholz, Timothy. “Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure.” 2011. Web. 27 Feb 2021.

Vancouver:

Fahrenholz T. Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure. [Internet] [Doctoral dissertation]. Duquesne University; 2011. [cited 2021 Feb 27]. Available from: https://dsc.duq.edu/etd/529.

Council of Science Editors:

Fahrenholz T. Application of Speciated Isotopes Dilution Mass Spectronmetry to the Assessment of Human Health and Toxic Exposure. [Doctoral Dissertation]. Duquesne University; 2011. Available from: https://dsc.duq.edu/etd/529

29. Aguiar, Giovanna de Fatima Moreno. Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra.

Degree: Mestrado, Toxicologia, 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-08092010-204549/ ;

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Os minerais são de extrema importância no metabolismo geral e no desempenho produtivo e reprodutivo dos bovinos. Atualmente, no Brasil, existem poucos estudos sobre o… (more)

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Os minerais são de extrema importância no metabolismo geral e no desempenho produtivo e reprodutivo dos bovinos. Atualmente, no Brasil, existem poucos estudos sobre o diagnóstico de deficiências minerais em bovinos, através de análise de macroelementos e elementos traço em fluidos biológicos. A maior parte das informações disponíveis limitam-se ao diagnóstico clínico de deficiências isoladas e à análise de elementos nas pastagens e no solo, que podem sugerir deficiências sub clínicas de alguns minerais, mas apresentam várias limitações e interferências. O objetivo deste trabalho foi desenvolver um método de análise simples, com introdução direta da amostra, utilizando a técnica de q-ICP-MS e DRC-ICP-MS, para determinação de Ca, Cu, Fe, Mg, Zn, I, Mo, As, Se, Ni, Co, Ba, Cs, Mn e Pb em sêmen bovino. Para realização das análises, foi utilizada calibração em meio aquoso e as amostras foram diluídas na proporção 1:50 em solução contendo 0,01% v/v Triton® X-100 e 0,5% v/v de ácido nítrico. Também foram avaliadas a calibração por ajuste de matriz e a análise das amostras após digestão por microondas, para confirmação dos resultados obtidos por introdução direta e calibração em meio aquoso. O DRC foi essencial para determinação de níquel. O gás de reação utilizado foi H2 e os parâmetros RPq e vazão do gás foram estudados para otimização do método. Os limites de detecção para determinação de 44Ca, 63Cu, 57Fe, 24Mg, 64Zn, 127I, 98Mo, 75As, 82Se, 59Co, 138Ba, 133Cs, 55Mn e 208Pb foram: 0,262; 0,003; 0,168; 0,004; 0,004; 0,026; 0,007; 0,007; 0,033; 0,002; 0,005; 0,002; 0,003; 0,002 µg L-1 respectivamente, e para determinação de 60Ni por DRC-ICP-MS o LD foi 0,020 µgL-1. O método desenvolvido foi aplicado para determinação de 15 elementos em amostras de sêmen de bovinos de diferentes raças usadas em programas de reprodução e inseminação artificial.

The minerals are of extreme importance in the general metabolism and in the productive and reproductive performance of the bovines. Nowadays, in Brazil, few studies exist on the diagnosis of mineral deficiencies in bovine, through macroelementos analysis and trace elements in biological fluids. Most of the available information is limited to the clinical diagnosis of isolated deficiencies and the analysis of elements in the pastures and in the soil, that can suggest sub clinical deficiencies of some minerals, but present several limitations and interferences. The objective of this work was to develop a method of simple analysis, with direct introduction of the sample, using the technique of q-ICP-MS and DRC-ICP-MS, for determination of Ca, Cu, Fe, Mg, Zn, I, Mo, As, Se, Ni, Co, Ba, Cs, Mn and Pb in bovine semen. Aqueous medium calibration was used in the analysis and the samples were diluted in the proportion 1:50 in solution containing 0,01% v/v Triton® X-100 and 0,5% v/v of nitric acid. They were also evaluated the matrix matching and the analysis of samples after digestion for microwave, for confirmation of the results obtained by direct introduction and calibration in aqueous…

Advisors/Committee Members: Barbosa Junior, Fernando.

Subjects/Keywords: bovines; bovinos; cela de reação dinâmica; dynamic reaction cell (DRC-ICP-MS); ICP-MS; ICP-MS; minerais; minerals; semen; sêmen

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Aguiar, G. d. F. M. (2010). Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra. (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/60/60134/tde-08092010-204549/ ;

Chicago Manual of Style (16^th Edition):

Aguiar, Giovanna de Fatima Moreno. “Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra.” 2010. Masters Thesis, University of São Paulo. Accessed February 27, 2021. http://www.teses.usp.br/teses/disponiveis/60/60134/tde-08092010-204549/ ;.

MLA Handbook (7^th Edition):

Aguiar, Giovanna de Fatima Moreno. “Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra.” 2010. Web. 27 Feb 2021.

Vancouver:

Aguiar GdFM. Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra. [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Feb 27]. Available from: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-08092010-204549/ ;.

Council of Science Editors:

Aguiar GdFM. Determinação de elementos essenciais e tóxicos em sêmen bovino utilizando a espectrometria de massas com plasma acoplado (ICP-MS) com introdução direta da amostra. [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/60/60134/tde-08092010-204549/ ;

Universidade Federal de Santa Maria

30. Clarissa Marques Moreira. DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA.

Degree: 2008, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2309

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In this study different methods for speciation of Sb(III) and Sb(V) in meglumine antimoniate (NMG) were evaluated. Liquid chromatography (LC) combined or not with hydride… (more)

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In this study different methods for speciation of Sb(III) and Sb(V) in meglumine antimoniate (NMG) were evaluated. Liquid chromatography (LC) combined or not with hydride generation (HG) was investigated for separation of Sb(III) and Sb(V). Inductively coupled plasma mass spectrometry (ICP-MS) was used as detector. A flow injection system together with hydride generation (FI-HG) coupled with atomic absorption spectrometry (AAS) was also employed for the selective determination of Sb(III) in presence of Sb(V). Two anion-exchange columns (Dionex, IonPacAS14 and Hamilton, PRP-X100) were evaluated for Sb(III) and Sb(V) separation by LC. Parameters related to the mobile phase, such as type (EDTA, potassium phthalate, and potassium phthalate + EDTA), concentration (0.5 to 10 mmol L-1), pH (3.5 to 7.0), flow rate (0.25 to 1.75 mL min-1) and elution mode (isocratic and gradient) were studied. The volume of sample injected into the chromatograph was set at 200 μL. For the chromatographic separation, the mobile phase which led to improved separations of Sb(III) and Sb(V) was the EDTA in concentrations of 0.5 mmol L-1 and 1.0 mmol L-1 for the IonPac and PRP-X100 columns, respectively. The most appropriate parameters related to the FI-HG system were also evaluated and set, such as reductant of Sb(III) (NaBH4 0.1%, m/v), complexant of Sb(V) (10% m/v citric acid,), water as the sample carrier, analytical path (300 cm), volume of sample (100 μL), total flow rate of solutions (8.5 mL min-1) and flow rate of carrier gas (0.4 mL min-1). In order to identify and/or quantify the species of Sb present in the NMG, the samples were diluted in water only. Through the use of LC-ICP-MS it was only possible to quantify the Sb(V), whereas the presence of Sb(III) was not detected. The determination of Sb(III) was only possible through FI-HG AAS, FI-HG-ICP-MS and LC-HG-ICP-MS (by combination of conditions set for LC and FI-HG individually). Similar results for Sb(III) were obtained through the techniques FI-HG AAS and HGICP- MS. Thus, it was possible to quantify free Sb(III) and Sb(V), while probable compounds of Sb(III) and/or Sb(V) bound to NMG were observed but could not be identified and quantified, mainly because of lack of reference solutions and difficulty in separating the observed Sb species. The precision of methods for determination of Sb(III) and Sb(V) (expressed as relative standard deviation for 5 consecutive measurements) was about 9% and 3% respectively. As there were no certified reference materials to evaluate the accuracy of the developed methods, recovery tests of Sb(III) and Sb(V) were made, where they were in the range 96 to 101% for Sb(V) and 85 to 104% for Sb(III). Moreover, the results were compared with those obtained by official methods to quantify Sb(III), Sb(V) and Sb total in meglumine antimoniate.

Neste trabalho foram avaliados diferentes métodos para a análise de especiação de Sb(III) e Sb(V) em antimoniato de meglumina (NMG). Cromatografia a líquido (LC) combinada, ou não, com a técnica de geração de…

Advisors/Committee Members: Valderi Luiz Dressler, Sergio Roberto Mortari, Juliano Smanioto Barin.

Subjects/Keywords: especiação; controle de qualidade de medicamentos; FI-HG-ICP-MS; LC-ICP-MS; antimoniato de meglumina; LC-HG-ICP-MS; QUIMICA

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Moreira, C. M. (2008). DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2309

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Moreira, Clarissa Marques. “DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA.” 2008. Thesis, Universidade Federal de Santa Maria. Accessed February 27, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2309.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Moreira, Clarissa Marques. “DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA.” 2008. Web. 27 Feb 2021.

Vancouver:

Moreira CM. DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2008. [cited 2021 Feb 27]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2309.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Moreira CM. DETERMINAÇÃO DE ESPÉCIES DE ANTIMÔNIO EM ANTIMONIATO DE MEGLUMINA. [Thesis]. Universidade Federal de Santa Maria; 2008. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2309

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations