subject:(SPE)

University of Minnesota

1. Swenson, Michael M. Rapid solid phase extraction of dissolved organic matter.

Degree: MS, Chemistry, 2014, University of Minnesota

► Dissolved organic matter (DOM) is a complex mixture of organic molecules found ubiquitously in freshwater and saltwater environments. Contained within the heterogeneous mixture of DOM… (more)

Subjects/Keywords: DOM; Extraction; Organic matter; SPE

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

APA (6^th Edition):

Swenson, M. M. (2014). Rapid solid phase extraction of dissolved organic matter. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/165633

Chicago Manual of Style (16^th Edition):

Swenson, Michael M. “Rapid solid phase extraction of dissolved organic matter.” 2014. Masters Thesis, University of Minnesota. Accessed April 16, 2021. http://hdl.handle.net/11299/165633.

MLA Handbook (7^th Edition):

Swenson, Michael M. “Rapid solid phase extraction of dissolved organic matter.” 2014. Web. 16 Apr 2021.

Vancouver:

Swenson MM. Rapid solid phase extraction of dissolved organic matter. [Internet] [Masters thesis]. University of Minnesota; 2014. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11299/165633.

Council of Science Editors:

Swenson MM. Rapid solid phase extraction of dissolved organic matter. [Masters Thesis]. University of Minnesota; 2014. Available from: http://hdl.handle.net/11299/165633

2. Adibe Georges khouri. ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS.

Degree: 2007, Universidade Católica de Goiás

URL: http://tede.biblioteca.ucg.br/tde_busca/arquivo.php?codArquivo=358

► A cultura do abacaxi sempre se destacou na fruticultura, graças não só às qualidades deste fruto, bastante apreciado em todo mundo, mas principalmente pela rentabilidade… (more)

Subjects/Keywords: gas chromatography, atrazine , simazine, SPE.; ECOLOGIA; cromatografia gasosa, atrazina, simazina, SPE.

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APA (6^th Edition):

khouri, A. G. (2007). ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS. (Thesis). Universidade Católica de Goiás. Retrieved from http://tede.biblioteca.ucg.br/tde_busca/arquivo.php?codArquivo=358

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):

khouri, Adibe Georges. “ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS.” 2007. Thesis, Universidade Católica de Goiás. Accessed April 16, 2021. http://tede.biblioteca.ucg.br/tde_busca/arquivo.php?codArquivo=358.

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

MLA Handbook (7^th Edition):

khouri, Adibe Georges. “ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS.” 2007. Web. 16 Apr 2021.

Vancouver:

khouri AG. ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS. [Internet] [Thesis]. Universidade Católica de Goiás; 2007. [cited 2021 Apr 16]. Available from: http://tede.biblioteca.ucg.br/tde_busca/arquivo.php?codArquivo=358.

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

Council of Science Editors:

khouri AG. ANÁLISE DE RESÍDUOS DE ATRAZINA E SIMAZINA EM ABACAXI NO ESTADO DE GOIÁS. [Thesis]. Universidade Católica de Goiás; 2007. Available from: http://tede.biblioteca.ucg.br/tde_busca/arquivo.php?codArquivo=358

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

Brno University of Technology

3. Lukačková, Dagmar. Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/9157

► This diploma thesis addresses the presence and determination of chloramphenicol residues in biological materials. The theoretical part presents the literature retrieval containing information about veterinary… (more)

Subjects/Keywords: chloramfenikol; GC; MS; SPE; MIP; chloramphenicol; GC; MS; SPE; MIP

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APA (6^th Edition):

Lukačková, D. (2019). Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/9157

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):

Lukačková, Dagmar. “Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/9157.

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

MLA Handbook (7^th Edition):

Lukačková, Dagmar. “Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS.” 2019. Web. 16 Apr 2021.

Vancouver:

Lukačková D. Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/9157.

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

Council of Science Editors:

Lukačková D. Stanovení reziduí chloramfenikolu v biologickém materiálu, vodě a krmivech metodou GC/MS: The assesment of chloramphenicol residues in biological material, water and feed by GC/MS. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/9157

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

Brno University of Technology

4. Scholzová, Kristýna. Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/58950

► This bachelor thesis deals with Solid Phase Extraction, as a method for isolation of free fatty acids from cheese matrix to be subsequently determined using… (more)

Subjects/Keywords: sýry; GC; MK; SPE; cheese; GC; FA; SPE

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

APA (6^th Edition):

Scholzová, K. (2018). Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/58950

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):

Scholzová, Kristýna. “Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/58950.

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

MLA Handbook (7^th Edition):

Scholzová, Kristýna. “Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix.” 2018. Web. 16 Apr 2021.

Vancouver:

Scholzová K. Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/58950.

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

Council of Science Editors:

Scholzová K. Použití extrakce tuhou fází pro frakcionaci lipidů v sýrové matrici: The use of solid phase extraction for fractionation of lipids in cheese matrix. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/58950

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

University of Tasmania

5. Adamczewski, J. The Hoard: Paged virtual memory for the Cell BE SPE.

Degree: 2011, University of Tasmania

URL: https://eprints.utas.edu.au/11726/1/Adamczewski_thesis-pdf.pdf

► The hoard is a paged virtual memory system for program data designed for the Cell Broadband Engine processor (Cell BE). The hoard makes it easier… (more)

▼ The hoard is a paged virtual memory system for program data designed for the Cell Broadband Engine processor (Cell BE). The hoard makes it easier to utilise the performance available from the processor’s Synergistic Processor Elements (SPEs). Traditional highperformance hardware cache designs are not well-suited to being implemented in software on the Cell BE architecture, so the hoard takes advantage of the SPE’s wide registers to implement a multi-level page table. This permits fast, fully associative lookup into a dynamically-sized collection of data pages. Write-back of all pages is performed (not just those modified) and a first-in first-out page replacement method is used. This design is compared with the software cache provided with the IBM SDK for Multicore Acceleration — a fixed-size, four-way set associative design, using a traditional hardware approach — through extensive experiments with a diverse range of benchmarks. An in-depth analysis is made of the performance of the hoard design, addressing its strengths and shortcomings. From this analysis, potential improvements to the hoard are considered, implemented, and their relative benefits measured. Changes include the tracking of page modification, pre-writing of pages, use of a write-through policy, pre- and partial-fetching of pages, and alternative replacement algorithms. Results show that simple and speculative methods are often the most beneficial, and that performance varies greatly depending on the memory access patterns of a particular program. It was found that programs with high locality of access will perform better when using the hoard, in some cases exceeding the performance of the same program running on the Power Processor Element of the Cell BE. For programs with lower locality of reference, performance of the hoard and SDK cache are within a few percent of one another. An additional design goal for the hoard is to make the access and management of data outside of the SPE’s local store as transparent as possible to the programmer. Not implemented as part of a particular compiler, the hoard is a compile- and run-time library that makes use of C++ language features to provide a natural pointer interface, requiring a minimal amount of changes to existing programs. Careful implementation of the interface ensures that program semantics are well preserved and accidental misuse is discouraged, while taking advantage of the features of the Cell BE to provide high-speed lookup. The result is a tool that facilitates the reuse of a broad range of existing code-bases on the SPE.

Subjects/Keywords: CellBE; SPE; software cache; virtual memory

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

APA (6^th Edition):

Adamczewski, J. (2011). The Hoard: Paged virtual memory for the Cell BE SPE. (Thesis). University of Tasmania. Retrieved from https://eprints.utas.edu.au/11726/1/Adamczewski_thesis-pdf.pdf

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):

Adamczewski, J. “The Hoard: Paged virtual memory for the Cell BE SPE.” 2011. Thesis, University of Tasmania. Accessed April 16, 2021. https://eprints.utas.edu.au/11726/1/Adamczewski_thesis-pdf.pdf.

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

MLA Handbook (7^th Edition):

Adamczewski, J. “The Hoard: Paged virtual memory for the Cell BE SPE.” 2011. Web. 16 Apr 2021.

Vancouver:

Adamczewski J. The Hoard: Paged virtual memory for the Cell BE SPE. [Internet] [Thesis]. University of Tasmania; 2011. [cited 2021 Apr 16]. Available from: https://eprints.utas.edu.au/11726/1/Adamczewski_thesis-pdf.pdf.

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

Council of Science Editors:

Adamczewski J. The Hoard: Paged virtual memory for the Cell BE SPE. [Thesis]. University of Tasmania; 2011. Available from: https://eprints.utas.edu.au/11726/1/Adamczewski_thesis-pdf.pdf

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

6. Leonco, Daniel, siao-Loung. Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments.

Degree: Docteur es, Chimie analytique et environnementale, 2017, Bordeaux

URL: http://www.theses.fr/2017BORD0809

►

Il est maintenant avéré que les contaminants présents dans les milieux aquatiques peuvent être toxiques à l’état de traces voire d’ultra traces. Il est donc… (more)

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Il est maintenant avéré que les contaminants présents dans les milieux aquatiques peuvent être toxiques à l’état de traces voire d’ultra traces. Il est donc important de développer des méthodes d’analyse performantes et sensibles pouvant atteindre ces niveaux de concentration. Dans cette optique, les techniques chromatographiques couplées à la spectrométrie de masse (GC-MS et LC-MS/MS) sont généralement utilisées pour l’analyse des polluants organiques. Les composés présents dans les milieux aquatiques possèdent des propriétés physico-chimiques très variées, d’apolaires à très polaires. Ainsi, développer une analyse simultanée pour toutes ces molécules représente un challenge analytique. Dans ce travail de thèse, plusieurs étapes du processus analytique ont été évaluées : la préparation de l’échantillon par extraction sur phase solide (SPE), la séparation par chromatographie et la détection par spectrométrie de masse. Une liste de composés modèles couramment retrouvés dans les milieux aquatiques a été établie pour conduire ces essais. Les méthodes d’extraction en phase solide hors ligne et en ligne ont été développées dans une optique d’analyse multirésidus à un niveau de traces. Les méthodes chromatographiques, gazeuse et liquide, couplées à la spectrométrie de masse ont été étudiées pour favoriser une analyse exhaustive et sensible. La dernière partie a consisté à appliquer les méthodes développées pour une approche d’analyse non ciblée.

It is now widely recognized that contaminants present in aquatic environments can be toxic at traces or even ultra-traces level. Therefore, it is important to develop efficient and sensitive analytical methods to reach these levels of concentration. In that respect, chromatographic techniques coupled to mass spectrometry (GC-MS and LC-MS / MS) are commonly used for the analysis of organic pollutants. The substances encountered in aquatic environments display a large range of physico-chemical properties, from apolar to very polar. Thus, developing a simultaneous analysis for all these molecules represents an analytical challenge. In this pHD work, several steps of the analytical process have been investigated: sample preparation by solid phase extraction (SPE), chromatographic separation and the detection by mass spectrometry. A list of model compounds commonly determined in aquatic environments was established to conduct the tests. Solid phase extraction methods, offline and online, were developed in a multiresidue analysis aim at traces level. Chromatographic methods, gaseous and liquid, coupled to mass spectrometry were studied to obtain an exhaustive and sensitive analysis. The last part consisted to apply the developed methods for a non-targeted analysis approach.

Advisors/Committee Members: Budzinski, Hélène (thesis director), Lestremau, François (thesis director).

Subjects/Keywords: SPE hors ligne; SPE en ligne; LC-QqQ; LC-QTOF; GC-MS; Offline SPE; Online SPE; LC-QqQ; LC-QTOF; GC-MS

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

APA (6^th Edition):

Leonco, Daniel, s. (2017). Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments. (Doctoral Dissertation). Bordeaux. Retrieved from http://www.theses.fr/2017BORD0809

Chicago Manual of Style (16^th Edition):

Leonco, Daniel, siao-Loung. “Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments.” 2017. Doctoral Dissertation, Bordeaux. Accessed April 16, 2021. http://www.theses.fr/2017BORD0809.

MLA Handbook (7^th Edition):

Leonco, Daniel, siao-Loung. “Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments.” 2017. Web. 16 Apr 2021.

Vancouver:

Leonco, Daniel s. Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments. [Internet] [Doctoral dissertation]. Bordeaux; 2017. [cited 2021 Apr 16]. Available from: http://www.theses.fr/2017BORD0809.

Council of Science Editors:

Leonco, Daniel s. Développement méthodologique pour l'analyse d'une large gamme de composés dans le milieux aquatiques : Methodological development for the analysis of a wide range of compounds in the aquatic environments. [Doctoral Dissertation]. Bordeaux; 2017. Available from: http://www.theses.fr/2017BORD0809

Vytautas Magnus University

7. Čirvidas, Mindaugas. Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje.

Degree: Master, Theology, 2011, Vytautas Magnus University

URL: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110622_153021-14122 ;

►

Šiais laikais ne tik Lietuvoje, bet ir pasaulyje yra juntama vilties stygiaus problema. Šiame darbe yra nagrinėjama vilties trukumo problema, remiantis popiežiaus Benedikto XVI enciklika… (more)

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Šiais laikais ne tik Lietuvoje, bet ir pasaulyje yra juntama vilties stygiaus problema. Šiame darbe yra nagrinėjama vilties trukumo problema, remiantis popiežiaus Benedikto XVI enciklika „Spe Salvi“. Čia išryškinama ne tik vilties trūkumo priežastys, bet taip pat svarstomos ir ugdymo galimybės. Pirmojoje šio darbo dalyje yra nagrinėjama vilties teologija, remiantis enciklika „Spe Salvi“. Čia yra paryškinama keletą bruožų, kas būdinga vilčiai. Pirmiausiai, viltis yra į ateitį nukreipta. Bet ji svarbi yra ir dabarčiai. Taip pat labai svarbus vilties gelbėjantis pobūdis. Ir pirmame skyriuje taip pat pateikiama keletas pavyzdžių, kaip viltis gelbėja. Bet bene svarbiausia, kad tikroji viltis yra tik Dieve. Antroje dalyje apžvelgiama beviltiškumo priežastys Lietuvoje. Kas Lietuvos žmonėms trukdo stipresniam vilties reiškimuisi. Nemažai antropologinių žaizdų yra Lietuvoje, kurių šaknis būtų galima įvardinti vilties stoka. Mūsų tautoje yra įsišakniję alkoholizmas, esame viena iš pirmaujančių valstybių pagal savižudybių skaičių. Trečioje dalyje buvo praktiškai pamėginta pritaikyti Benedikto XVI enciklikoje siūlomi vilties ugdymo kriterijai. Popiežius siūlo, maldą, kančią, veiklumą ir iniciatyvos skatinimą, bei teismą, kaip vilties ugdymo galimybes. Tas buvo mėginta daryti, atsižvelgiant į šiandieninę Lietuvos situaciją, pasiremiant tyrimo metu gauta medžiaga.

Nowadays Lithuania, as well as the rest of the world faces the problem of the lack of hope. The current thesis explores the problem of the lack of hope and the possibilities for the cultivation of hope on the basis of Pope Benedict XVI’s encyclical Spe Salvi. Part One of the thesis analyses the theology of hope with a particular focus on the encyclical Spe Salvi. Although hope is directed towards the future, it is also vitally important in the present. Similarly significant is the redeeming character of hope. Chapter One provides some examples which disclose the redeeming character of hope. Yet, probably the most significant thing is that true hope can be found only in God. Part Two features the reasons for hopelessness in Lithuania with a particular focus on the obstacles that prevent any stronger expression of hope among the Lithuanians. Lithuanian people bear a considerable number of anthropological wounds the roots of which can be traced in the second Soviet occupation. Those wounds, those factors depriving people of hope lie in alcoholism and Lithuania’s top position in the list of world suicide rate. Part Three is an attempt to apply the criteria for the cultivation of hope as proposed in Benedict XVI’s encyclical Spe Salvi in the situation of the present day Lithuania. Pope offers prayer, suffering, activity, promotion of initiative and the Last Judgment as the fields for exercising hope.

Advisors/Committee Members: Kėvalas, Kęstutis (Master’s thesis supervisor), Skinkaitis, Rimas (Master’s thesis reviewer), Meilius, Kazimieras (Master’s degree committee chair).

Subjects/Keywords: Viltis; „Spe Salvi“; Malda; Kančia; Lietuva; Hope; Spe Salvi; Prayer; Suffering; Lithuania

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

APA (6^th Edition):

Čirvidas, Mindaugas. (2011). Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje. (Masters Thesis). Vytautas Magnus University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110622_153021-14122 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16^th Edition):

Čirvidas, Mindaugas. “Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje.” 2011. Masters Thesis, Vytautas Magnus University. Accessed April 16, 2021. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110622_153021-14122 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7^th Edition):

Čirvidas, Mindaugas. “Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje.” 2011. Web. 16 Apr 2021.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Čirvidas, Mindaugas. Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje. [Internet] [Masters thesis]. Vytautas Magnus University; 2011. [cited 2021 Apr 16]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110622_153021-14122 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Čirvidas, Mindaugas. Popiežiaus Benedikto XVI enciklikos "Spe Salvi" praktinio pritaikomumo teorinės galimybės šiuolaikinės Lietuvos visuomenėje. [Masters Thesis]. Vytautas Magnus University; 2011. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110622_153021-14122 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

8. Ruccella, Loredana. L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press.

Degree: Docteur es, Sciences du langage, 2014, Université Paris X – Nanterre

URL: http://www.theses.fr/2014PA100033

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Notre recherche trouve sa raison d’être au cours de l’été 2007 lorsque le marché américain des prêts immobiliers hypothécaires - les désormais célèbres prêts subprimes,… (more)

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Notre recherche trouve sa raison d’être au cours de l’été 2007 lorsque le marché américain des prêts immobiliers hypothécaires - les désormais célèbres prêts subprimes, octroyés aux ménages en situation de difficulté financière et dont la capacité de remboursement était très faible, voire nulle - s’effondre en engendrant une crise très violente qui, en l’espace de quelques mois, s’étend au monde entier et frappe les secteurs les plus divers de la finance jusqu’à atteindre, comme il était prévisible, l’économie réelle. Confrontés à ces faits et inondés par une avalanche de mots identiques, de discours dangereusement uniformes, de solutions uniques étrangement partagées par tout le monde, nous avons été envahis par un sentiment de mécompréhension, de perplexité et de méfiance qui nous a incité à lire entre les lignes, à analyser, filtrer et interpréter l’information qui nous parvenait. Cette activité nous a permis de porter notre réflexion sur l’hypothèse que la presse diffuse un type de discours homogène, unique et standardisé se caractérisant par le recours à certaines techniques discursives permettant de soutenir le modèle économique néolibéral et d’orienter le lecteur vers une perception de la réalité économique façonnée à l’image de celui-ci. Nous appellerons ce discours, discours économiquement correct. Cette hypothèse sera vérifiée suite à l’analyse d’un ensemble d’articles issus des pages économiques de trois quotidiens français et de trois quotidiens italiens d’information générale et d’importance majeure : Le Monde, Libération, Le Figaro, La Stampa, La Repubblica et Il Corriere della Sera. Compte tenu de ces considérations, notre objectif sera celui d’analyser la manière dont la presse traite le problème de la crise et notre domaine de recherche sera celui des pages économiques de la presse générale ; nous serons donc confrontés à l’analyse d’un langage – ou plus exactement, d’un discours – de vulgarisation économique. Dans la première partie de notre travail – conçue comme un état des lieux de la problématique posée – nous introduirons les concepts clés de notre recherche. Nous approcherons donc ici les questions définitionnelles en proposant, dans un premier temps, une description historique retraçant les étapes principales du développement de l’euphémisme du Moyen Âge au XXIe siècle et, dans un deuxième temps, une réflexion autour du concept même d’euphémisme. Nous prêterons également attention à l’évolution du journalisme économique. La deuxième partie de notre travail fera donc l’objet d’une étude dont la problématique s’inscrit dans la volonté de préciser la nature du discours économiquement correct. La troisième partie de notre thèse se présentera comme une réflexion autour du caractère manipulatoire du discours économiquement correct.Dans la quatrième partie, nous élaborerons un outil lexicographique bilingue, répertoriant les substituts potentiellement euphémiques identifiés au cours de notre recherche.

The aim of this work is to study the way in which the euphemization of economic speech,…

Advisors/Committee Members: Jeandillou, Jean-François (thesis director), Marello, Carla (thesis director).

Subjects/Keywords: Euphémisme; SPE; Vulgarisation; Néolibéralisme; Crise; Économiquement correct; Euphemism; SPE; Vulgarization; Neoliberalism; Crisis; Economically correct; 410

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

APA (6^th Edition):

Ruccella, L. (2014). L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press. (Doctoral Dissertation). Université Paris X – Nanterre. Retrieved from http://www.theses.fr/2014PA100033

Chicago Manual of Style (16^th Edition):

Ruccella, Loredana. “L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press.” 2014. Doctoral Dissertation, Université Paris X – Nanterre. Accessed April 16, 2021. http://www.theses.fr/2014PA100033.

MLA Handbook (7^th Edition):

Ruccella, Loredana. “L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press.” 2014. Web. 16 Apr 2021.

Vancouver:

Ruccella L. L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press. [Internet] [Doctoral dissertation]. Université Paris X – Nanterre; 2014. [cited 2021 Apr 16]. Available from: http://www.theses.fr/2014PA100033.

Council of Science Editors:

Ruccella L. L’économiquement correct : analyse du discours euphémique sur la crise dans la presse française et italienne : Economically correct : analysis of euphemistic speech on economic crisis in French and Italian general press. [Doctoral Dissertation]. Université Paris X – Nanterre; 2014. Available from: http://www.theses.fr/2014PA100033

Brno University of Technology

9. Píšťková, Magdalena. Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/8927

► The aim of this diploma thesis was to determine the rutin content in springs and leaves of 19 elderberry species (Sambucus nigra L.) with use… (more)

Subjects/Keywords: rutin; kvercetin; černý bez; SPE; PSE; PHWE; HPLC; rutin; quercetin; elderberry; SPE; PSE; PHWE; HPLC

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

APA (6^th Edition):

Píšťková, M. (2019). Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/8927

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):

Píšťková, Magdalena. “Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/8927.

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

MLA Handbook (7^th Edition):

Píšťková, Magdalena. “Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars.” 2019. Web. 16 Apr 2021.

Vancouver:

Píšťková M. Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/8927.

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

Council of Science Editors:

Píšťková M. Obsah rutinu ve vybraných odrůdách bezu černého: Content of rutin in selected elderberry cultivars. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/8927

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

Brno University of Technology

10. Holubová, Zuzana. Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/25793

► The work has been focused on the preconcentration techniques for determination of 9Be, 51V, 59Co, 60Ni, 89Y, 111Cd, 208Pb, 232Th and 238U on the modified… (more)

▼ The work has been focused on the preconcentration techniques for determination of 9Be, 51V, 59Co, 60Ni, 89Y, 111Cd, 208Pb, 232Th and 238U on the modified sorbents, all measurements were performed on ICP-MS. The instrument setup was optimized. The solution of internal standard (200 µg•l-1) was used during all measurements. The internal standard were chosen as follows: 6Li for 9Be, 45Sc (51V), 72Ge (59Co, 60Ni, 89Y), 103Rh (111Cd), 209Bi (206Pb, 207Pb, 208Pb, 232Th and 238U). Another parameters such as influence of mineral acids (HCl, HNO3), surfactant (Septonex®, Zephyramin, Ajatin, Brij 35 and Sodium dodecyl sulphate) and organic reagents (Ammonium pyrrolidinedithiocarbamate, 8-Hydroxyquinoline-5-sulphonic acid, 1,2-Dihydroxyanthraquinone-3-sulphonic acid and 4-(2-Pyridylazo)resorcinol) and the effect of some matrix components on intensity of instrument signal determination was investigated. For preconcentration polar Silicagel and modified nonpolar Silicagels (Silicagel-C18, C8 nad Phenyl) were used. Another experimantal part was dedicated to preconcentration on nonpolar Amberlite XAD-16 and Strata SDB-L and intermediately polar sorbent Amberlite XAD-7. Recoveries of sorption process were observed in the presence of all testing types of surfactants in certified concentration 5•10-4 mol•l-1. Surfactants were always applied in the conditioning step. The suitable combinations of surfactant and organic reagent were tested for increasing of recoveries of analytes. Testing organic reagents were added in five times mass excess againts concentration of analytes, the concentration of the organic reagents was 900 µg•l-1. The organic reagent was always added to the solution for preconcentration before this solution was led on the sorbent. The composition and a necessary volume of elution mixture for quantitative elution were tested, too. Only one sorbent was chosen from each group of sorbents with similar properties. The chosen sorbent showed the best recoveries in majority of target analytes. The highest recoveries from silica-group was reached for Silicagel-C18, from nonpolar Amberlite was chosen Strata SDB-L and intermediately polar Amberlite XAD-7. The influence of some matrix components (anionts and cations) on recoveries of analytes was investigated for chosen sorbent. The optimized process was applied on real samples of nature water and industry water. In experimental part all analytes are marked as specific izotopes, which were measured by ICP-MS. Of course, all izotopes of analytes undergo preconcentration techniques. Advisors/Committee Members: Sommer, Lumír (advisor), Čelechovská, Olga (referee), Holoubek,, Ivan (referee), Otruba,, Vítězslav (referee).

Subjects/Keywords: stopové kovy; SPE; ICP-MS; Silikagel; Amberlit; trace metals; SPE; ICP-MS; Silicagel; Amberlite

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

APA (6^th Edition):

Holubová, Z. (2018). Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/25793

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):

Holubová, Zuzana. “Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/25793.

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

MLA Handbook (7^th Edition):

Holubová, Zuzana. “Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters.” 2018. Web. 16 Apr 2021.

Vancouver:

Holubová Z. Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/25793.

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

Council of Science Editors:

Holubová Z. Prekoncentrace stopových prvků na modifikovaných sorbentech a jejich stanovení ve vodách: Preconcentration of Trace Analytes on Modified Sorbents and their Determination on Waters. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/25793

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

Brno University of Technology

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

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 April 16, 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. 16 Apr 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 Apr 16]. 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

Brno University of Technology

12. Sýkora, Richard. Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/9685

► Analgesics are nowadays widely used group of drugs in human and also in veterinary medicine. Residuals of these drugs enter surface waters via discharges from… (more)

Subjects/Keywords: rezidua léčiv; plynová chromatografie; derivatizace; SPE; drug residuals; gas chromatography; derivatization; SPE

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

APA (6^th Edition):

Sýkora, R. (2019). Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/9685

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):

Sýkora, Richard. “Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/9685.

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

MLA Handbook (7^th Edition):

Sýkora, Richard. “Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals.” 2019. Web. 16 Apr 2021.

Vancouver:

Sýkora R. Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/9685.

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

Council of Science Editors:

Sýkora R. Využití plynové chromatografie pro stanovení reziduí léčiv: Application of gas chromatography for determination of drug residuals. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/9685

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

Brno University of Technology

13. Krůzová, Sabina. Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/60336

► The thesis focuses on non-steroidal anti-inflammatory drugs in wastewater. It characterizes drugs and defines specific methods of determination naproxen and ibuprofen in wastewater. Besides their… (more)

Subjects/Keywords: Nesteroidní léčiva; odpadní voda; SPE; UHPLC; Non-steroidal anti-inflammatory drug (NSAID); waterwaste; SPE; UHPLC

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

APA (6^th Edition):

Krůzová, S. (2019). Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/60336

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):

Krůzová, Sabina. “Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/60336.

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

MLA Handbook (7^th Edition):

Krůzová, Sabina. “Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater.” 2019. Web. 16 Apr 2021.

Vancouver:

Krůzová S. Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/60336.

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

Council of Science Editors:

Krůzová S. Stanovení nesteroidních protizánětlivých látek v odpadních vodách: Determination of NSAIDs in wastewater. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/60336

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

Brno University of Technology

14. Hornáková, Miroslava. Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/38303

► This thesis deals with the determination of free fatty acids in natural and processed cheese. In the theoretical part the possibilities of extraction, fractionation and… (more)

Subjects/Keywords: sýry; GC; MK; VMK; TLC; SPE; cheese; GC; FA; FFA; TLC; SPE

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

APA (6^th Edition):

Hornáková, M. (2019). Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/38303

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):

Hornáková, Miroslava. “Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/38303.

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

MLA Handbook (7^th Edition):

Hornáková, Miroslava. “Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids.” 2019. Web. 16 Apr 2021.

Vancouver:

Hornáková M. Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/38303.

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

Council of Science Editors:

Hornáková M. Možnosti analytického stanovení volných mastných kyselin: The possibilities of assessment of free fatty acids. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/38303

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

Brno University of Technology

15. Koval, Dominik. Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/80713

► This master´s thesis deals with optimization and validation of method for determination of free fatty acids. The theoretical part is focused on possibilities of extraction,… (more)

Subjects/Keywords: sýry; GC-FID; SPE; MK; VMK; cheese; GC-FID; SPE; FA; FFA

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

APA (6^th Edition):

Koval, D. (2018). Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/80713

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):

Koval, Dominik. “Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/80713.

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

MLA Handbook (7^th Edition):

Koval, Dominik. “Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids.” 2018. Web. 16 Apr 2021.

Vancouver:

Koval D. Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/80713.

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

Council of Science Editors:

Koval D. Výběr a optimalizace metody stanovení volných mastných kyselin: The selection and optimization of the method for assessment of free fatty acids. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/80713

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

16. Pedrobom, Jorge Henrique [UNESP]. Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT).

Degree: 2016, Universidade Estadual Paulista (UNESP)

URL: http://hdl.handle.net/11449/141920

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Um dos fatores mais preocupantes na área de mineração de urânio é a drenagem ácida de mina (DAM), tal processo ocorre de maneira espontânea e descontrolada no complexo minério industrial de Poços de Caldas (CIPC). A DAM pode gerar espécies de urânio acima dos valores permitidos para lançamento em corpos hídricos. Durante o processo de DAM, o urânio, possivelmente, esta na forma de óxidos e hidróxidos de uranilo, ao atingir os corpos hídricos, sua forma pode mudar para espécies contendo grupos carbonato e sulfato. A concentração e labilidade dessas espécies são importantes para avaliação da biogeodisponibilidade do metal para o sistema aquático. A técnica de difusão em filmes finos por gradiente de concentração (DGT) tem sido utilizada para quantificação de metais na sua forma lábil e especiação de metais em diferentes tipos de amostra. Nesta pesquisa a técnica DGT foi utilizada em laboratório com diferentes fases ligantes para avaliar a aplicação em águas de DAM tratada e afluentes no entorno de mineração de urânio. A partir de imersões in situ, a técnica DGT foi utilizada juntamente com a técnica de extração em fase sólida (SPE) para avaliar a labilidade das espécies de urânio presente no sistema. Os resultados mostraram que grande parte do urânio presente nas amostras está na forma lábil. Por sua vez estes resultados se mostraram concordantes com a especiação via software MINTEQ. Por outro lado, os resultados obtidos pela SPE não foram concordantes com a técnica DGT, isso pode ser oriundo da saturação da fase ligante ou devido os diferentes tempos de residência dos íons nas diferentes técnicas.

One of the major concerns in uranium mining areas is the Acid Mine Drainage (AMD). This process occurs spontaneously and uncontrollably in Poços de Caldas Ore Industrial Complex (CIPC). DAM can generate levels of uranium species higher than the maximum allowed values for water bodies discharge. During the DMA process, uranium is possibly in the form of uranyl oxides and hydroxides and after reaching water bodies, it changes to species which contain carbonate and sulfate groups. The determination of concentration and lability of these species is important to evaluate the metal biogeoavailability to the water system. The Diffusion Gradients in Thin Films Technique (DGT) has been used for the quantification of labile metals and their…

Advisors/Committee Members: Universidade Estadual Paulista (UNESP), Menegário, Amauri Antonio [UNESP].

Subjects/Keywords: Especiação; Urânio; DGT; SPE; DAM; Labilidade; Speciation; Uranium; DGT; SPE; DAM; Lability

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

APA (6^th Edition):

Pedrobom, J. H. [. (2016). Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT). (Masters Thesis). Universidade Estadual Paulista (UNESP). Retrieved from http://hdl.handle.net/11449/141920

Chicago Manual of Style (16^th Edition):

Pedrobom, Jorge Henrique [UNESP]. “Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT).” 2016. Masters Thesis, Universidade Estadual Paulista (UNESP). Accessed April 16, 2021. http://hdl.handle.net/11449/141920.

MLA Handbook (7^th Edition):

Pedrobom, Jorge Henrique [UNESP]. “Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT).” 2016. Web. 16 Apr 2021.

Vancouver:

Pedrobom JH[. Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT). [Internet] [Masters thesis]. Universidade Estadual Paulista (UNESP); 2016. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11449/141920.

Council of Science Editors:

Pedrobom JH[. Especiação de urânio em águas tratada de drenagem ácida de mina usando a técnica de difusão em filmes finos por gradiente de concentração (DGT). [Masters Thesis]. Universidade Estadual Paulista (UNESP); 2016. Available from: http://hdl.handle.net/11449/141920

Pontifical Catholic University of Rio de Janeiro

17. GABRIELA COSTA STOLL. [en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY.

Degree: 2018, Pontifical Catholic University of Rio de Janeiro

URL: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35914

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[pt] Este trabalho consistiu na implementação, e consequente validação, de metodologia para determinação de bifenilas policloradas (PCBs) em amostras de água e material particulado por… (more)

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[pt] Este trabalho consistiu na implementação, e consequente validação, de metodologia para determinação de bifenilas policloradas (PCBs) em amostras de água e material particulado por cromatografia gasosa acoplada à espectrometria de massas em tandem (GC-MS/MS). O método de análise de água superficial foi desenvolvido para a determinação simultânea de 41 PCBs; utilizando a Extração Acelerada por Solvente (ASE) para o material particulado em suspensão e a Extração em Fase Sólida (SPE) para a fração dissolvida. A quantificação foi realizada no modo de Monitoramento Seletivo de Reação (SRM), com monitoramento de dois padrões de fragmentação m/z precursor-produto. A linearidade das curvas analíticas foi confirmada pelo valor do coeficiente de determinação (R2), além do comportamento aleatório do gráfico de resíduos e pelo teste F na análise da variância (ANOVA) da regressão. A homocedasticidade dos dados foi confirmada pelo teste de Cochran. O Limite de Detecção (LD) para cada um dos dois métodos de extração utilizados variou de 0,06 a 0,50 ng L(-1) para o SPE e 0,01 a 0,12 ng L(-1) para o ASE. A repetibilidade, expressa através dos coeficientes de variação (CV), apresentou valores inferiores a 20 por cento. A recuperação média dos analitos variou de 60 por cento a 118 por cento quando da extração em fase sólida (SPE) e de 65 a 106 por cento para o material particulado suspenso. A seletividade do método foi avaliada pelo Teste F (Snedecor) de homogeneidade de variâncias e pelo Teste t (Student) de comparação de médias. Possíveis perdas durante o processo foram monitoradas pelo uso do padrão surrogate e encontraram-se em limites aceitáveis. O método validado foi aplicado para a análise da água do Canal do Mangue, região central do Rio de Janeiro, e o intervalo encontrado para o somatório de PCBs totais variou de 2,17 ng L(-1) a 5,29 ng L(-1).

[en] The aim of this work consists of the implementation and validation of a methodology for determination of polychlorinated biphenyls (PCBs) in water samples and particulate matter by gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). The surface water analysis method was developed for the simultaneous determination of 41 PCBs; using the Solvent Accelerated Extraction (ASE) for the suspended particulate matter and the Solid Phase Extraction (SPE) for the dissolved fraction. Quantification was performed in Selective Reaction Monitoring (SRM) mode, with monitoring of two m/z precursor-product fragmentation patterns. The linearity of the analytical curves was confirmed by the coefficient of determination (R2), the random behavior of the residual plots and by the F test in the analysis of variance (ANOVA) for the regression. The homoscedasticity of the data was confirmed by the Cochran test. The limit of detection (LD) for each one of the two extraction methods used vary in a range of 0.06 to 0.50 ng L(-1) for the SPE and 0.01 to 0.12 ng L(-1) for the ASE. Regarding the repeatability studies, the coefficients of variation (CV) found were less than 20 per cent. The…

Advisors/Committee Members: CARLOS GERMAN MASSONE.

Subjects/Keywords: [pt] PCBS; [en] PCBS; [pt] GC-MS; [en] GC-MS; [pt] ASE; [en] ASE; [pt] SPE; [en] SPE

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

APA (6^th Edition):

STOLL, G. C. (2018). [en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY. (Thesis). Pontifical Catholic University of Rio de Janeiro. Retrieved from http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35914

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):

STOLL, GABRIELA COSTA. “[en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY.” 2018. Thesis, Pontifical Catholic University of Rio de Janeiro. Accessed April 16, 2021. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35914.

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

MLA Handbook (7^th Edition):

STOLL, GABRIELA COSTA. “[en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY.” 2018. Web. 16 Apr 2021.

Vancouver:

STOLL GC. [en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY. [Internet] [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2018. [cited 2021 Apr 16]. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35914.

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

Council of Science Editors:

STOLL GC. [en] METHOD DEVELOPMENT FOR DETERMINATION OF POLYCHLORINATED BIPHENYLS (PCBS) IN SURFACE WATER BY GAS CHROMATOGRAPHY COUPLED TO TANDEM MASS SPECTROMETRY. [Thesis]. Pontifical Catholic University of Rio de Janeiro; 2018. Available from: http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=35914

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

Vanderbilt University

18. Enders, Jeffrey Richard. Structural mass spectrometry strategies for systems biology.

Degree: PhD, Chemistry, 2012, Vanderbilt University

URL: http://hdl.handle.net/1803/14097

► Systems biology seeks to describe the function of a biological system using a holistic, multiscale approach. This approach encompasses the analyses of molecular classes such… (more)

▼ Systems biology seeks to describe the function of a biological system using a holistic, multiscale approach. This approach encompasses the analyses of molecular classes such as the genome, transcriptome, proteome, and metabolome (among others) of a biological system. Systems biology asserts that while understanding genes and proteins is important, the most important aspects going forward are more closely related to the system’s network structure and network dynamics. There is a substantial need for improved techniques for coupling the system on which the analysis is being performed (i.e., the organism) with the detection instrumentation (i.e., the ion mobility-mass spectrometer). Advances in systems biology measurements which focus on improved dynamic detection strategies are presented in this work. Our preliminary research shows the potential for this system to provide temporally resolved systems biology data directly from complex cellular culture populations. Precise and expedient control of the microenvironment of the MTNP with regards to input concentrations (i.e., stimuli) has been demonstrated and shows that biomolecular temporal events on the order of 5 minutes are observable with this platform. This accomplishment is critical for future stimulus/response experiments. The broad and temporally accurate detection capabilities of IM-MS have been demonstrated for complex biological samples originating from a sustained yeast cellular culture inside of a microfluidic device. The potential of the combination of microfluidics and IM-MS has been shown by the sheer number of analytes detected from a simple Jurkat cell population. This Jurkat cell data illustrates the abundance of secreted material which is observable with the use of ion mobility-mass spectrometry. Additionally, we have reviewed a study on cocaine metabolism in Jurkat cells which benchmarks the platform while also demonstrating its potential for discovery-driven research. Advisors/Committee Members: David E. Cliffel (committee member), Brian O. Bachmann (committee member), John P. Wikswo (committee member), John A. McLean (Committee Chair).

Subjects/Keywords: MS; network dynamics; cellular dynamics; systems biology; mass spectrometry; ion mobility; microfluidics; solid phase extraction; IM; SPE; online SPE

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

APA (6^th Edition):

Enders, J. R. (2012). Structural mass spectrometry strategies for systems biology. (Doctoral Dissertation). Vanderbilt University. Retrieved from http://hdl.handle.net/1803/14097

Chicago Manual of Style (16^th Edition):

Enders, Jeffrey Richard. “Structural mass spectrometry strategies for systems biology.” 2012. Doctoral Dissertation, Vanderbilt University. Accessed April 16, 2021. http://hdl.handle.net/1803/14097.

MLA Handbook (7^th Edition):

Enders, Jeffrey Richard. “Structural mass spectrometry strategies for systems biology.” 2012. Web. 16 Apr 2021.

Vancouver:

Enders JR. Structural mass spectrometry strategies for systems biology. [Internet] [Doctoral dissertation]. Vanderbilt University; 2012. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/1803/14097.

Council of Science Editors:

Enders JR. Structural mass spectrometry strategies for systems biology. [Doctoral Dissertation]. Vanderbilt University; 2012. Available from: http://hdl.handle.net/1803/14097

Universidade Federal do Maranhão

19. MARCONIEL NETO DA SILVA. DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS.

Degree: 2009, Universidade Federal do Maranhão

URL: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=757

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Honey is a product of proven therapeutic and nutritional properties, and which may act as an excellent bioindicator, given the way the bees gather and… (more)

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Honey is a product of proven therapeutic and nutritional properties, and which may act as an excellent bioindicator, given the way the bees gather and process the raw material used in its preparation. The monitoring of pesticide residues in honey is important both to control product quality in domestic and international markets, and in assessing the potential for contamination in areas near agricultural crops. Considering these facts, we developed a method for analyzing carbamate insecticides (carbaryl and carbofuran), organochlorine (aldrin and dieldrin), organophosphates (dimethoate and parathion methyl) and pyrethroid (permethrin), and the group of anilides herbicide (propanil) and fenoxiácidos (2,4-D) in honey. Hence, in this work the analytical conditions were established for the proper determination of residues of pesticides cited using the technique of solid phase extraction and liquid chromatography with UV detection with a diode array. The study aimed to compare different analytical conditions for the determination of pesticides, looking for better separation, sensitivity, precision and accuracy in the determination of pesticide residues in samples of honey bees. Standard solutions at concentrations ranging from 1.0 to 20.0 μ g mL-1 were evaluated in different mobile phases, using a C18 column (250 x 4.6 mm id, 5 μ m). The mobile phase composition more suitable was acetonitrile: water at pH 3.0 (acidified with acetic acid) in gradient mode, for monitoring the compounds at a wavelength of 220 nm. In the established conditions, except for aldrin and dieldrin and dimeotate, it was observed recoveries between 75.26% and 113.58%, with variation Coefficients Between 2.16% and 11.31% for concentration levels raging from 0:10 to 1.00 μ gg-1 (correlation coefficients between 0.9978 and 0.9998). Recoveries lower than 50% to the cited insecticides were observed when using ethyl acetate solvent extractor and the solvent elution by ethyl acetate, in such a way new studies can be done to obtain better recoveries for these compounds.

O mel é um produto de reconhecidas propriedades nutritivas e terapêuticas e, o qual pode atuar como um excelente bioindicador, dada à forma como as abelhas recolhem e processam a matéria-prima utilizada na sua elaboração. O monitoramento de resíduos de pesticidas no mel é importante, tanto para o controle de qualidade do produto nos mercados nacional e internacional, quanto na avaliação do potencial de contaminação em áreas próximas a cultivos agrícolas. Considerando tais fatos, foi desenvolvido um método para análise dos inseticidas carbamatos (carbaril e carbofurano), organoclorados (aldrin e dieldrin), organofosforados (dimetoato e parationa metílica) e piretróide (permetrina), além do herbicida do grupo das anilidas (propanil) e fenoxiácidos (2,4-D) em mel. Para tanto, neste trabalho foram estabelecidas condições analíticas para a adequada determinação dos resíduos dos citados pesticidas utilizando a técnica de extração em fase solida e cromatografia líquida com detecção…

Advisors/Committee Members: Gilvanda Silva Nunes, Teresa Cristina R. dos Santos Franco.

Subjects/Keywords: Pesticidas; Mel; HPLC-DAD; Extração em fase sólida; SPE; QUIMICA ANALITICA; Pesticides; Honey; HPLC-DAD; Solid phase extraction; SPE

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

APA (6^th Edition):

SILVA, M. N. D. (2009). DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS. (Thesis). Universidade Federal do Maranhão. Retrieved from http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=757

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):

SILVA, MARCONIEL NETO DA. “DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS.” 2009. Thesis, Universidade Federal do Maranhão. Accessed April 16, 2021. http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=757.

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

MLA Handbook (7^th Edition):

SILVA, MARCONIEL NETO DA. “DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS.” 2009. Web. 16 Apr 2021.

Vancouver:

SILVA MND. DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS. [Internet] [Thesis]. Universidade Federal do Maranhão; 2009. [cited 2021 Apr 16]. Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=757.

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

Council of Science Editors:

SILVA MND. DESENVOLVIMENTO DE MÉTODO MULTIRESIDUAL PARA ANÁLISE DE PESTICIDAS EM MEL, UTILIZANDO CROMATOGRAFIA A LÍQUÍDO COM DETECTOR ESPECTROFOTOMÉTRICO COM ARRANJO DE DIODOS. [Thesis]. Universidade Federal do Maranhão; 2009. Available from: http://www.tedebc.ufma.br//tde_busca/arquivo.php?codArquivo=757

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

Universidade Federal de Santa Maria

20. Filipe Fagan Donato. RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS.

Degree: 2012, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5162

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O uso de agrotóxicos sempre esteve associado à efetividade no controle de pragas ou plantas invasoras para aumentar a produção de alimentos. No entanto, o… (more)

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O uso de agrotóxicos sempre esteve associado à efetividade no controle de pragas ou plantas invasoras para aumentar a produção de alimentos. No entanto, o uso indiscriminado dessas substâncias vem causando a degradação dos recursos hídricos. No Brasil, o Ministério da Saúde através da Portaria 2914 define diversos parâmetros de potabilidade, entre eles, os limites máximos permitidos para alguns agrotóxicos. No presente trabalho foi desenvolvido e validado um método para a determinação de resíduos de 70 agrotóxicos em água potável, utilizando Extração em Fase Sólida (SPE) para o preparo de amostra e determinação por Cromatografia Gasosa e Líquida, acopladas à Espectrometria de Massas sequencial, com analisador triplo quadrupolo (GC-(TQ)MS/MS e LC- (TQ)MS/MS). Foram avaliados diferentes volumes de amostra, sorventes e solventes de eluição. Os melhores resultados foram obtidos com 100 mL de amostra acidificada em pH 2,5, cartucho SPE Oasis HLB 60 mg/3 mL e diclorometano/metanol como eluente. As curvas analíticas apresentaram linearidade entre 10 e 250 Sg L-1, com valores de r2 maiores que 0,99 para todos os compostos. Os valores de LOQ do método foram 0,02 Sg L-1 para aldrin, dieldrin e clordano e de 0,5 Sg L-1 para os demais compostos. Para avaliação da exatidão as amostras branco foram fortificadas em 0,5, 1,5 e 4,0 Sg L-1 e um nível extra em 0,02 Sg L-1 para os compostos aldrin, dieldrin e clordano. O método apresentou boa precisão, com valores de RSD inferiores a 20% e boa exatidão, com recuperações entre 70 e 120%. Apenas os compostos metamidofós, aldicarbe, benfuracarbe, terbufós, benomil e tiofanato metílico não foram recuperados de forma adequada. O efeito matriz foi avaliado, mostrando-se superior a 10% para a maioria dos compostos. A fim de compensar este efeito, utilizou-se curvas analíticas preparadas no extrato branco da matriz. O método validado foi aplicado em 12 amostras de água potável de diferentes características (rio, vertente, poço e água tratada), sendo que apenas uma das amostras de água de rio apresentou resíduos de lambda-cialotrina. Os resultados indicam que o método proposto é adequado à análise de resíduos de agrotóxicos em água potável, visto que todos os parâmetros de validação atenderam os limites e parâmetros sugeridos para validação de métodos cromatográficos.

The use of pesticides always has been associated with the effective control of pests or invasive weeds to ensure an increase in the food production. However, the indiscriminate use of these substances has caused the degradation of water resources. In Brazil, the Ministry of Health through Ordinance 2914 defines several parameters of potability, among them, the maximum limits allowed for same pesticides. In this work it was developed and validated a method for the determination of residues of 70 pesticides in drinking water using (SPE) for sample preparation and determination by Gas and Liquid Chromatography coupled to tandem mass spectrometry, triple quadrupole analyzer (GC-(TQ)MS/MS and LC- (TQ)MS/MS). It was evaluated…

Advisors/Committee Members: Renato Zanella, Osmar Damian Prestes, Manoel Leonardo Martins.

Subjects/Keywords: GC-MS/MS; LC-MS/MS; água; SPE; agrotóxicos; LC-MS/MS; GC-MS/MS; SPE; pesticides; water; QUIMICA

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

APA (6^th Edition):

Donato, F. F. (2012). RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5162

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):

Donato, Filipe Fagan. “RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS.” 2012. Thesis, Universidade Federal de Santa Maria. Accessed April 16, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5162.

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

MLA Handbook (7^th Edition):

Donato, Filipe Fagan. “RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS.” 2012. Web. 16 Apr 2021.

Vancouver:

Donato FF. RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2012. [cited 2021 Apr 16]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5162.

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

Council of Science Editors:

Donato FF. RESÍDUOS DE AGROTÓXICOS EM ÁGUA POTÁVEL USANDO SPE E DETERMINAÇÃO RÁPIDA POR LC-MS/MS E GC-MS/MS. [Thesis]. Universidade Federal de Santa Maria; 2012. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=5162

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

Universidade Federal de Santa Maria

21. Michele Camara De Vicari. DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD.

Degree: 2009, Universidade Federal de Santa Maria

URL: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2619

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Rice is one of the most produced and consumed cereal in the world. It plays a strategic role both economically and socially. Southern is responsible… (more)

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Rice is one of the most produced and consumed cereal in the world. It plays a strategic role both economically and socially. Southern is responsible for about 60% of Brazilian rice production, which is directly linked to the intensive use of pesticides. Considering it, the study of the remaining of such compounds in crops to assess the risks of environmental contamination is socio-economically very important. Based on that this paper, an analytical approach has been developed and validated in order to determine the residues of bispyribac-sodium, quinclorac, and tebuconazole in water from irrigated rice crops, using Solid Phase Extraction (SPE) and High Performance Liquid Chromatography with Diode Array Detection (HPLC-DAD). The approach consists of preconcentration of water samples in SPE cartridges with 500 mg of C18, followed by elution with methanol and pesticides determination through HPLC-DAD. In the validation of the method, the analytical curve and linearity, limit of detection (LOD), limit of quantification (LOQ), precision (repetitivity and intermediate precision), as well accuracy (recovery) were assessed. The analytical curves displayed linearity between 0.03 and 10 mg L-1 for quinclorac, 0,1 e 10 mg L-1 for bispyribac-sodium and between 0,05 e 10 mg L-1 for tebuconazole, with determination coefficients higher than 0.9999. LOQ values for the approach, considering preconcentration phase of 250 times, were of 1.2 μg L-1 for bispyribac-sodium, 0.4 μg L-1 for quinclorac, and 0.6 μg L-1 for tebuconazole. The method presented recovery values between 76.1 and 116.5% and RSD values smaller than 19.8%. All the validation parameters are within the suggested limits for validation of chromatographic methods. The validated method was applied in the study of pesticides dissipation in water from irrigated rice crops. Bispyribac-sodium and quinclorac were found up to 28 and 91 days after the compounds have been used, respectively and tebuconazole to 21 days after the compound have been used.

O arroz é um dos cereais mais produzidos e consumidos no mundo e desempenha papel estratégico tanto no aspecto econômico quanto social. A Região Sul é responsável por cerca de 60% da produção brasileira de arroz, a qual está diretamente associada ao uso intensivo de pesticidas. Com isso, o estudo da persistência destes compostos nas lavouras para avaliar os riscos de contaminação ambiental é de suma importância sócio-econômica. Neste trabalho foi desenvolvido e validado um método analítico para a determinação de resíduos de bispiribaque-sódico, quincloraque e tebuconazole em amostras de água de lavoura de arroz irrigado, utilizando Extração em Fase Sólida (SPE) e Cromatografia Líquida de Alta Eficiência com Detecção por Arranjo de Diodos (HPLC-DAD). O método consiste na pré-concentração das amostras de água em cartuchos SPE contendo 500 mg de C18, seguida da eluição com metanol e determinação dos pesticidas por HPLC-DAD. Na validação do método avaliou-se curva analítica e linearidade, limite de detecção (LOD), limite…

Advisors/Committee Members: Renato Zanella, Martha Bohrer Adaime, Luis Antonio de Avila.

Subjects/Keywords: HPLC-DAD; SPE; água; arroz; resíduos de pesticidas; QUIMICA; rice; pesticide residues; water; SPE; HPLC-DAD

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

APA (6^th Edition):

Vicari, M. C. D. (2009). DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD. (Thesis). Universidade Federal de Santa Maria. Retrieved from http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2619

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):

Vicari, Michele Camara De. “DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD.” 2009. Thesis, Universidade Federal de Santa Maria. Accessed April 16, 2021. http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2619.

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

MLA Handbook (7^th Edition):

Vicari, Michele Camara De. “DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD.” 2009. Web. 16 Apr 2021.

Vancouver:

Vicari MCD. DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD. [Internet] [Thesis]. Universidade Federal de Santa Maria; 2009. [cited 2021 Apr 16]. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2619.

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

Council of Science Editors:

Vicari MCD. DETERMINAÇÃO DE BISPIRIBAQUE-SÓDICO, QUINCLORAQUE E TEBUCONAZOLE EM ÁGUA DE LAVOURA DE ARROZ IRRIGADO EMPREGANDO SPE E HLPC-DAD. [Thesis]. Universidade Federal de Santa Maria; 2009. Available from: http://coralx.ufsm.br/tede/tde_busca/arquivo.php?codArquivo=2619

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

22. Lozan, Ecaterina. Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse.

Degree: Docteur es, Chimie analytique et environnementale, 2015, Bordeaux; Bordeaux

URL: http://www.theses.fr/2015BORD0390

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Les oestrogènes font partie de la famille des neurostéroïdes. Notamment, l’Estradiol (17β-E2) pourrait avoirdes effets bénéfiques sur certaines anomalies liées à l'âge (déclin mnésique et… (more)

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Les oestrogènes font partie de la famille des neurostéroïdes. Notamment, l’Estradiol (17β-E2) pourrait avoirdes effets bénéfiques sur certaines anomalies liées à l'âge (déclin mnésique et cognitif, maladie d'Alzheimer). Le dosagede très faibles teneurs du 17β-E2 et de ces métabolites (Estrone, Estriol), dans les tissus cérébraux et le plasma, constitueun outil indispensable pour estimer la variation de leurs niveaux avec l'âge et dans différentes pathologies.Tout d'abord, nous avons élaboré une méthode en RP-HPLC-ESI(-)-MS/MS de quantification des oestrogènes sansdérivation chimique. La sélectivité de la séparation et la sensibilité de la détection de ces molécules ont été amélioréesaprès optimisation des paramètres MRM et chromatographiques.Puis, différents agents de dérivation ont été synthétisés et évalués afin d’augmenter le taux d’ionisation pour améliorerla sensibilité de détection. Après l’analyse ESI-MS et MS/MS de onze dérivés du 17β-E2, nous nous sommes intéressésplus particulièrement au dérivé 17β-E2-Q8S.Afin de réduire les interférences, une méthode de préparation de l’échantillon biologique (tissus cérébral, plasma desouris) a été développée. Les deux dosages (sans et avec dérivation) ont été comparées en termes de sensibilité, limitesde détection et de quantification (LD et LQ), linéarité et reproductibilité. Puis, elles ont été appliquées à l’analyse deséchantillons de cerveau, d'hippocampe et de plasma prélevés sur des animaux jeunes et âgés traités avec des quantitésconnues de 17β-E2. La méthode qui nous est apparue la plus robuste est la méthode sans dérivation avec une LD de0,5 fmole.μL-1.

Estrogens are neurosteroids, especially Estradiol (17β-E2) which is considered to be the most biologicallyactive form. 17β-E2 could have positive effects on some age-associated anomalies (memory and cognitive impairment,Alzheimer's disease). For elucidating and better understanding the molecular and cellular mechanisms that underliethe effects within the brain, it is necessary to quantitate 17β-E2 and its metabolites (estrone and estriol) in brain andplasma.First, the RP-HPLC-ESI(-)-MS/MS method without derivatization was developed. The selectivity of the separationand the sensitivity of detection of the estrogens has been improved after optimization of MRM and chromatographicparameters.Secondly, the various derivatization agents were evaluated after their synthesis in order to improve the sensitivity,selectivity and signal enhancement. After studying the eleven synthesized derivatives of 17β-E2 in ESI-MS andMS/MS, promising results were obtained with the 17β-E2-Q8S derivative.A simple purification method using liquid-liquid extraction followed by C18 solid phase extraction has been optimizedin order to minimize assay interferences. The two assays (with and without derivatization) were then compared interms of efficiency, detection and quantification limits (LOD/LOQ), calibration linearity and reproducibility. Then,both methods were validated on biological samples (brain, hippocampus and plasma) collected from…

Advisors/Committee Members: Schmitter, Jean-Marie (thesis director), Shinkaruk-Poix, Svitlana (thesis director).

Subjects/Keywords: Estradiol; Neurostéroïdes; Spectrométrie de masse; SPE; HPLC; MRM; ESI; Dérivation; Estradiol; Neurosteroïds; Mass spectrometry; SPE; HPLC; MRM; ESI; Derivatization

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

APA (6^th Edition):

Lozan, E. (2015). Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse. (Doctoral Dissertation). Bordeaux; Bordeaux. Retrieved from http://www.theses.fr/2015BORD0390

Chicago Manual of Style (16^th Edition):

Lozan, Ecaterina. “Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse.” 2015. Doctoral Dissertation, Bordeaux; Bordeaux. Accessed April 16, 2021. http://www.theses.fr/2015BORD0390.

MLA Handbook (7^th Edition):

Lozan, Ecaterina. “Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse.” 2015. Web. 16 Apr 2021.

Vancouver:

Lozan E. Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse. [Internet] [Doctoral dissertation]. Bordeaux; Bordeaux; 2015. [cited 2021 Apr 16]. Available from: http://www.theses.fr/2015BORD0390.

Council of Science Editors:

Lozan E. Analyse quantitative de l'Estradiol dans les tissus cérébraux et le plasma de souris : Quantitative analysis of Estradiol in brain tissue and plasma of mouse. [Doctoral Dissertation]. Bordeaux; Bordeaux; 2015. Available from: http://www.theses.fr/2015BORD0390

Brno University of Technology

23. Ehrenbergerová, Martina. Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/11333

► Barley is one of the economically important crops. Its production is primarilly used as fodder barley and also in brewery and food industry. Particularly the… (more)

Subjects/Keywords: Jačmeň; pesticídy; fungicídy; insekticídy; herbicídy; GC; HPLC; extrakcia; SPE; GPC.; Barley; pesticides; fungicides; insecticides; herbicides; GC; HPLC; extraction; SPE; GPC.

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

APA (6^th Edition):

Ehrenbergerová, M. (2019). Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/11333

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):

Ehrenbergerová, Martina. “Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/11333.

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

MLA Handbook (7^th Edition):

Ehrenbergerová, Martina. “Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley.” 2019. Web. 16 Apr 2021.

Vancouver:

Ehrenbergerová M. Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/11333.

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

Council of Science Editors:

Ehrenbergerová M. Multireziduální stanovení vybraných pesticidů v ječmeni: Multirezidual analysis of selected pesticides in barley. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/11333

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

Brno University of Technology

24. Kosárová, Hedvika. Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/21056

► This thesis deals with optimization of conditions for the determination of platinum by electrothermal atomic absorption spectrometry. The theoretical part describes the occurrence of platinum… (more)

Subjects/Keywords: Platina; atomová absorpční spektrometrie; SPE; mikrovlnná extrakce; automobilový katalyzátor; Platinum; atomic absorption spektrometry; SPE; microwave extraction; catalytic converter

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

APA (6^th Edition):

Kosárová, H. (2018). Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/21056

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):

Kosárová, Hedvika. “Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/21056.

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

MLA Handbook (7^th Edition):

Kosárová, Hedvika. “Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry.” 2018. Web. 16 Apr 2021.

Vancouver:

Kosárová H. Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/21056.

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

Council of Science Editors:

Kosárová H. Aplikace prekoncentračních/separačních technik pro stanovení platiny v životním prostředí atomovou spektrometrií: Application of preconcentration/separation techniques for the determination of platinum in the environment by atomic spectrometry. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/21056

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

Brno University of Technology

25. Hajdová, Jana. Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/30923

► The theoretical part of this master’s thesis focuses on the characteristic of Palladium, his uses in the automotive convertors, the occurrence in the environment, bioaccumulation… (more)

Subjects/Keywords: Palladium; životní prostředí; automobilové katalyzátory; biomonitoring; lišejníky; ET – AAS; SPE.; Palladium; environment; automotive catalysts; biomonitoring; lichens; ET – AAS; SPE.

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

APA (6^th Edition):

Hajdová, J. (2018). Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/30923

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):

Hajdová, Jana. “Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction.” 2018. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/30923.

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

MLA Handbook (7^th Edition):

Hajdová, Jana. “Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction.” 2018. Web. 16 Apr 2021.

Vancouver:

Hajdová J. Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/30923.

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

Council of Science Editors:

Hajdová J. Stanovení palladia metodou ET-AAS po předchozí prekoncentraci na pevných sorbentech: Determination of palladium by ET-AAS after previous preconcentration by solid phase extraction. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/30923

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

Brno University of Technology

26. Grulichová, Hana. Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/7238

► Amount of rutin and quercetin in bark and leaves from different type of Sambucus nigra was determined in this diploma thesis. Records of amounts were… (more)

▼ Amount of rutin and quercetin in bark and leaves from different type of Sambucus nigra was determined in this diploma thesis. Records of amounts were compared with amounts in significant sources of these flavonoids. Matters from raw matrix were obtained with pressurized solvent extraction (PSE) and pressurized hot water extraction (PHWE). There was use temperature 120°C, pressure 150 bar, three times 5-min cycles for PSE. There were used 80°C, 150 bar, three 5-min cycles for rutin extracted with PHWE and the same condition were used for extraction of quercetin only the temperature was changed to 100 °C. Analysis of rutin and quercetin were carry out high performance liquid chromatography (HPLC) with diode array detection (DAD), where was used SUPELCOSILTM LC 8DB column (5µm; 250 x 4.6 mm). Methanol: water: formic acid (36: 61.5: 2.5, pH 2.17 2.28) was used like a mobile phase. The flow of the mobile phase was set up 0.7 ml/min. Size of sample was 10 µl. The most amount of rutin was determined in the leaves of wild kind of Sambucus nigra with methanol extraction and hot water too. Extraction with PHWE was more effectively. There were determined 5.58 mg of rutin in one gram of sample from wild Sambucus nigra. There were determined the smallest amount of rutin in Sambucus nigra Körsör. There was found only 0.13 mg/g with extraction PHWE. The quercetin wasn’t determined in any Sambucus nigra leaves. There were found both of the flavonoids (rutin and quercetin) in the branch of Sambucus nigra. The rutin was determined in the small amount in wild kind but it was found in the important amount in Sambucus nigra cultivar. Whereas the quercetin was found in higher concentration than rutin when was finding the ideal conditions for extraction of branch. The quercetin was chosen like more important in light of amount. In the end the quercetin wasn’t detected in any Sambucus nigra cultivars. The most amount of quercetin was determined in wild sambucus nigra, 0.24 mg/g. The most amount of rutin was found in Sambucus nigra Albida, 2.33 mg/g. Advisors/Committee Members: Vespalcová, Milena (advisor), Hrstka, Miroslav (referee).

Subjects/Keywords: PSE; PHWE; SPE; HPLC; rutin; kvercetin; bez černý; PSE; PHWE; SPE; HPLC; rutin; quercetin; Sambucus nigra

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

APA (6^th Edition):

Grulichová, H. (2019). Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/7238

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):

Grulichová, Hana. “Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes.” 2019. Thesis, Brno University of Technology. Accessed April 16, 2021. http://hdl.handle.net/11012/7238.

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

MLA Handbook (7^th Edition):

Grulichová, Hana. “Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes.” 2019. Web. 16 Apr 2021.

Vancouver:

Grulichová H. Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11012/7238.

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

Council of Science Editors:

Grulichová H. Extrakce vybraných flavonoidů bezu černého pro potravinářské účely: Extraction of selected elderberry flavonoids for food industry purposes. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/7238

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

27. Koutouzi, Foteini. Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις.

Degree: 2016, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

URL: http://hdl.handle.net/10442/hedi/39559

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Streptococcus pyogenes is an important human pathogen. The aims of the study were to investigate streptococcal infections in children (epidemiology, prevalence and diversity of emm-types,… (more)

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Streptococcus pyogenes is an important human pathogen. The aims of the study were to investigate streptococcal infections in children (epidemiology, prevalence and diversity of emm-types, antibiotic susceptibility, macrolide resistant genes and pyrogenic exotoxins-SPE genes). This prospective study conducted 2007-2013, in children ≤14 years old. Identification of S.pyogenes was confirmed by standard techniques, emm typing by PCR and sequencing, and sensitivity to antibiotics by Kirby-Bauer and Etest. Macrolide resistant-genes and pyrogenic exotoxins genes detected by "multiplex" PCR. Analysis performed with SPSS, XLSTAT, x2 tests, Fisher and Pearson. A total of 1324 children (51.8% boys) were included in the study, median age 65 months. Pharyngitis occurred in 84.4%, invasive infections in 5.7% and otitis, pyoderma or vaginitis in 9.9%. Infections occurred in 67.8% of cases from November to May. Frequent were invasive infections in children ≤3 years old and pharyngeal 4-6 years old. Thirty-five different emm-types, including 15-subtypes, were identified. The most prevalent emm-types identified were 1(16.7%), 12(13.6%), 77(10.9%), 4(10.8%) and 28(10.4%). The 30-valent vaccine encompasses 97.3% of emm-types identified in the study. Classification of emm-types to emm-clusters indicated that 35 emm-types belonged to 13 emm-clusters. Antibiotic resistance found: macrolides 20.4%, clindamycin 13.8% (iMLSB 10.5%, cMLSB 3.3%), tetracycline 18.7% levofloxacin 5.4% and chloramphenicol 2.8%. Macrolide resistance genes were detected: erm(A) 50,4%, mef(A) 32.2% and erm(B) 16.3%. No correlation was observed in macrolide consumption and resistance. The speB genes or speA and speB, were often found in invasive isolates. Continuous surveillance of emm types is needed in order to evaluate the possible benefits of an M-protein-based S.pyogenes vaccine.

Ο Streptococcus pyogenes παραμένει σημαντικό παθογόνο για τον άνθρωπο. Στόχοι της μελέτης ήταν να διερευνηθούν οι στρεπτοκοκκικές λοιμώξεις στα παιδιά (επιδημιολογία, επιπολασμός και ποικιλομορφία emm-τύπων, συσχέτιση με 30-δύναμο εμβόλιο, ευαισθησία στα αντιβιοτικά, γονίδια αντοχής στις μακρολίδες και γονίδια πυρετογόνων εξωτοξινών-SPE). Πρόκειται για προοπτική μελέτη που πραγματοποιήθηκε, 2007-2013, σε παιδιά ≤14 ετών. Ταυτοποίηση του S.pyogenes έγινε με κλασικές μεθόδους, τυποποίηση emm-τύπων με PCR και αλληλούχιση και ευαισθησία στα αντιβιοτικά με Kirby-Bauer και Etest. Τα γονίδια αντοχής μακρολιδών και πυρετογόνων εξωτοξινών ανιχνεύτηκαν με “multiplex” PCR. Ανάλυση έγινε με το SPSS, XLSTAT, δοκιμασίες χ2, Fisher και Pearson. Εξετάσθηκαν 1324 παιδιά (51,8% αγόρια) με διάμεση ηλικία 65 μήνες. Φαρυγγίτιδα εμφάνισαν 84,4%, διεισδυτική λοίμωξη 5,7% και ωτίτιδα, πυοδερμία ή κολπίτιδα 9,9%. Το 67,8% των λοιμώξεων σημειώθηκε Νοέμβριο-Μάιο. Συχνές ήταν οι διεισδυτικές λοιμώξεις σε παιδιά ≤3 ετών και οι φαρυγγικές 4-6 ετών. Διαπιστώθηκαν 35 emm-τύποι και 15 υπότυποι με επικρατέστερους: 1(16,7%), 12(13,6%), 77(10,9%), 4(10,9%), και 28(10,4%). Το 97,3% των emm-τύπων περιλαμβάνονται στο…

Subjects/Keywords: Πυογόνος στρεπτόκκοκος; Στρεπτοκοκκικές λοιμώξεις; Emm τύποι; Αντοχή στις μακρολίδες; Γονίδια spe; Streptococcus pyogenes; Streptococcal infections; Emm types; Macrolide resistance; Spe genes

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

APA (6^th Edition):

Koutouzi, F. (2016). Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις. (Thesis). National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Retrieved from http://hdl.handle.net/10442/hedi/39559

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):

Koutouzi, Foteini. “Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις.” 2016. Thesis, National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ). Accessed April 16, 2021. http://hdl.handle.net/10442/hedi/39559.

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

MLA Handbook (7^th Edition):

Koutouzi, Foteini. “Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις.” 2016. Web. 16 Apr 2021.

Vancouver:

Koutouzi F. Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις. [Internet] [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2016. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/10442/hedi/39559.

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

Council of Science Editors:

Koutouzi F. Γενετικά και φαινοτυπικά χαρακτηριστικά στελεχών β-αιμολυτικού στρεπτόκοκκου της ομάδας Α από παιδιά με διεισδυτικές και μη διεισδυτικές λομώξεις. [Thesis]. National and Kapodistrian University of Athens; Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); 2016. Available from: http://hdl.handle.net/10442/hedi/39559

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

28. Costa, Denys Ribeiro de Oliveira. Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS.

Degree: 2019, Universidade Federal de Goiás; Programa de Pós-graduação em Química (IQ); UFG; Brasil; Instituto de Química – IQ (RG)

URL: http://repositorio.bc.ufg.br/tede/handle/tede/9402

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The performance of the Orbitrap MS ultra-high-resolution mass analyzer was evaluated in the Brazilian petroleum study. The characteristics evaluated were: power of resolution and mass accuracy, during the characterization of samples of low TAN - (Total Acid Number), in six samples of oils. In addition, the objective was the detection of phenolic compounds in oils, class O, associated to the stabilization of emulsions. The phenolic compounds were studied, characterized by distribution in percentage of classes, DBE vs relative intensity, DBE vs carbon number and total carbon vs relative intensity. The study was performed by coupling the Electrospray ionization source, negative analysis mode, ESI(-), with the mass analyzer Orbitrap MS. The studied oils were divided into two groups, group 1 being emulsions and group 2 being non-emulsifying. The mass spectra of the oils and the respective fractions varied the ratio m/z ~ 200-1200 Da. The major classes found in the oil samples were: N, NO, NO2, NO3, O and O2. The predominant species in the six oils were (DBE 4) corresponding to monoaromatic phenols, aromatic compounds condensed with a ring (DBE 5), and two naphthenic rings (DBE 6). Di-, tri- and tetra-aromatic phenolic molecules (DBE 7, 10 and 13, respectively) were also detected. Finally, through SPE fractionation, it was possible to ionize and detect phenolic molecules with high ~C80 carbon numbers. Therefore, with the identification of these compounds of high molecular weight that have long carbon chains, which act as interfacial agents and align with the paraffins present in the oils, this phenomenon, justifies the formation of stable emulsions.

Resumo: O desempenho do analisador de massas de ultra-alta resolução Orbitrap MS foi avaliado no estudo de petróleos brasileiros. As características avaliadas foram: poder de resolução e precisão de massas, durante a caracterização de amostras de baixo TAN – (Total Acid Number), em seis amostras de petróleos. Ademais, objetivou-se a detecção de compostos fenólicos em petróleos, classe O, associada à estabilização de emulsões. Foram estudados os…

Advisors/Committee Members: Vaz, Boniek Gontijo, Vaz, Boniek Gontijo, Alonso, Christian Gonçalves, Kato, Lucília.

Subjects/Keywords: Orbitrap MS; ESI; SPE e fenóis; Orbitrap MS; ESI; SPE and phenols; CIENCIAS EXATAS E DA TERRA::QUIMICA

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

APA (6^th Edition):

Costa, D. R. d. O. (2019). Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS. (Masters Thesis). Universidade Federal de Goiás; Programa de Pós-graduação em Química (IQ); UFG; Brasil; Instituto de Química – IQ (RG). Retrieved from http://repositorio.bc.ufg.br/tede/handle/tede/9402

Chicago Manual of Style (16^th Edition):

Costa, Denys Ribeiro de Oliveira. “Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS.” 2019. Masters Thesis, Universidade Federal de Goiás; Programa de Pós-graduação em Química (IQ); UFG; Brasil; Instituto de Química – IQ (RG). Accessed April 16, 2021. http://repositorio.bc.ufg.br/tede/handle/tede/9402.

MLA Handbook (7^th Edition):

Costa, Denys Ribeiro de Oliveira. “Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS.” 2019. Web. 16 Apr 2021.

Vancouver:

Costa DRdO. Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS. [Internet] [Masters thesis]. Universidade Federal de Goiás; Programa de Pós-graduação em Química (IQ); UFG; Brasil; Instituto de Química – IQ (RG); 2019. [cited 2021 Apr 16]. Available from: http://repositorio.bc.ufg.br/tede/handle/tede/9402.

Council of Science Editors:

Costa DRdO. Novas abordagens na caracterização de petróleos por espectrometria de massas FT-MS. [Masters Thesis]. Universidade Federal de Goiás; Programa de Pós-graduação em Química (IQ); UFG; Brasil; Instituto de Química – IQ (RG); 2019. Available from: http://repositorio.bc.ufg.br/tede/handle/tede/9402

29. Tanare Cambraia Ribeiro Ferreira. Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos.

Degree: 2014, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-12022015-112950/

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A identificação de intermediários formados durante os processos de tratamentos de efluentes tem se tornado alvo de estudos. Entretanto, uma das questões mais importantes nos… (more)

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A identificação de intermediários formados durante os processos de tratamentos de efluentes tem se tornado alvo de estudos. Entretanto, uma das questões mais importantes nos estudos de intermediários formados durante a fotólise ou degradação de fármacos por processos oxidativos avançados publicados atualmente é a concentração inicial utilizada. Altas concentrações dificultam a compreensão da real situação que ocorre na natureza, onde esses compostos são encontrados em baixas concentrações. Dentro deste contexto, o presente estudo, avaliou a pré-concentração de intermediários formados durante a fotólise em solução aquosa e em esgoto sintético da sulfametazina (SMZ), do ciprofloxacino (CIP) e do enrofloxacino (ENR) em diferentes concentrações (25 mg L-1 e 250 μg L-1 para SMZ; 10 mg L-1 e 100 μg L-1 para CIP e ENR) utilizando espectromatria de massas sequencial de alta resolução (Q-ToF e LIT-Orbitrap MS). Foram identificados oito intermediários da fotodegradação da SMZ, dentre estes os de m/z nominal 140 e 229 ainda não relatados na literatura. A metodologia desenvolvida para a SMZ foi aplicada a análises de produtos de transformação vindos de reator anaeróbio. As análises da biodegradação da SMZ permitiram a identificação de três produtos de transformação. O m/z 295 foi comum aos dois processos, fotólise e biodegradação. O m/z 227 foi descrito pela primeira vez como produto de biodegradação anaeróbia da SMZ. Tanto para o CIP quanto para o ENR foram identificados 10 intermediários, apesar da similaridade entre os dois fármacos, apenas um produto de degradação foi comum aos dois, o m/z 346, além do próprio CIP que é intermediário do ENR. Dentre as fases extratoras avaliadas, a Oasis HLB se mostrou mais eficiente na recuperação dos intermediários. A pré-concentração de intermediários formados durante a fotodegradação dos antimicrobianos estudados permitiu a avaliação da degradação destes em concentrações menores do que aquelas atingidas pelos trabalhos já publicados que abordaram rotas de degradação. Os perfis de degradação em diferentes concentrações e em diferentes matrizes apresentam indícios de serem diferente, tanto no perfil quanto na composição proporcional entre os produtos formados. Esses resultados são promissores, visto que permitem uma aproximação às concentrações ambientalmente relevantes.

Identification of intermediate products formed during effluent treatment has become the focus of some studies. However, one of the most important issues during the photolysis of drugs or degradation by advanced oxidation processes is the high and invariable initial concentration of the treated drug. High concentrations, used in currently publications, potentially hinder the understanding of the real situation that occurs in nature, where low concentrations of these drugs are usually found. Here we focused in the identification of the degradation products of sulfamethazine (SMZ), ciprofloxacin (CIP) and enrofloxacin (ENR) obtained by photolysis in aqueous and synthetic wastewater medium. Solid-phase…

Advisors/Committee Members: Álvaro José dos Santos Neto, Raquel Fernandes Pupo Nogueira, Eny Maria Vieira.

Subjects/Keywords: antimicrobianos; fotodegradação; LC-MS/MS; produtos de fotodegradação; SPE; antimicrobials; LC-MS/MS; photodegradation; photodegradation products; SPE

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

APA (6^th Edition):

Ferreira, T. C. R. (2014). Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/75/75135/tde-12022015-112950/

Chicago Manual of Style (16^th Edition):

Ferreira, Tanare Cambraia Ribeiro. “Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos.” 2014. Doctoral Dissertation, University of São Paulo. Accessed April 16, 2021. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-12022015-112950/.

MLA Handbook (7^th Edition):

Ferreira, Tanare Cambraia Ribeiro. “Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos.” 2014. Web. 16 Apr 2021.

Vancouver:

Ferreira TCR. Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos. [Internet] [Doctoral dissertation]. University of São Paulo; 2014. [cited 2021 Apr 16]. Available from: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-12022015-112950/.

Council of Science Editors:

Ferreira TCR. Identificação e pré-concentração dos produtos da fotodegradação de antimicrobianos. [Doctoral Dissertation]. University of São Paulo; 2014. Available from: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-12022015-112950/

30. Rodrigo Nogueira Padovan. Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar.

Degree: 2015, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-18082015-104331/

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Vários compostos utilizados ou produzidos pelo homem quando lançados no meio ambiente, ou mesmo em estações de tratamento de esgoto, não são facilmente degradados ou… (more)

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Vários compostos utilizados ou produzidos pelo homem quando lançados no meio ambiente, ou mesmo em estações de tratamento de esgoto, não são facilmente degradados ou removidos. Desse modo, acabam voltando às estações de tratamento de água, que em sua maioria utilizam métodos que não são capazes de remover tais compostos, podendo até aumentar o efeito biológico destes. A detecção destes compostos é um desafio para a Química Analítica, já que ocorrem em baixas concentrações. Degradou-se uma mistura de quatro hormônios ¾ três naturais, 17 β-estradiol (E2), estrona (E1) e estriol (E3), e um sintético, 17 α-etinilestradiol (EE2) ¾ em água de abastecimento público pela fotocatálise heterogênea solar, utilizando-se o fotocatalisador dióxido de titânio suportado em um reator de placa plana operado com reciclo. Foi também desenvolvido e validado um método analítico totalmente automatizado que possibilitou detectar e quantificar baixas concentrações dos quatro hormônios. Foram obtidos limites de quantificação de 10 μg L-1, com a extração de 125 μL de amostra, com coeficiente de variação (< 20%) e exatidão (todos entre 80 a 120%) dentro dos limites aceitáveis para este tipo de análise. Foi possível verificar que a eficiência de degradação atingiu mais de 90% em menos de 4 horas para todos os hormônios. Mesmo com esse nível de degradação não foi possível a remoção da atividade estrogênica. Só houve uma redução significativa após 9 h de degradação. Possivelmente, a atividade estrogênica foi mantida pela concentração restante dos hormônios e/ou pela formação de produtos de degradação que também apresentavam atividade biológica. Alguns desses compostos foram propostos, sendo alguns conhecidos na literatura. No entanto, com as análises realizadas, não foi possível se ter certeza de que os compostos gerados no tratamento são realmente os sugeridos.

Several compounds used or produced by man, when released into the environment, or even in sewage treatment plants, are not easily degraded or removed. Thus, these compounds eventually return to water treatment plants, which mostly use methods incapable of removing them, and may even enhance their biological effect. The detection of these compounds is a challenge to Analytical Chemistry, as they occur at low concentrations. A mixture of four hormones were degraded ¾ three of them of natural origin, 17β-estradiol (E2), estrone (E1), and estriol (E3) and a synthetic one, 17α-ethinyl estradiol (EE2) ¾ in public water supply by solar heterogeneous photocatalysis, using supported titanium dioxide as the photocatalyst in a flat-plate reactor in recycling mode. A fully automated analytical method was developed and validated making it possible to detect and quantify low concentrations of the four hormones. Quantification limits of 10 μg L-1 were achieved with the extraction of a 125 μL-sample, with coefficients of variation (< 20%) and accuracy (all between 80 and 120%) were acceptable limits for this type of analysis. It was possible to observe…

Advisors/Committee Members: Eduardo Bessa Azevedo, Marcia Walquíria de Carvalho Dezotti, Raquel Fernandes Pupo Nogueira, Igor Renato Bertoni Olivares.

Subjects/Keywords: Degradação solar; Fotocatálise heterogenia; hormônios; SPE-on line; heterogeneous photocatalysis; hormones; solar degradation; SPE-on line

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

APA (6^th Edition):

Padovan, R. N. (2015). Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar. (Doctoral Dissertation). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/75/75135/tde-18082015-104331/

Chicago Manual of Style (16^th Edition):

Padovan, Rodrigo Nogueira. “Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar.” 2015. Doctoral Dissertation, University of São Paulo. Accessed April 16, 2021. http://www.teses.usp.br/teses/disponiveis/75/75135/tde-18082015-104331/.

MLA Handbook (7^th Edition):

Padovan, Rodrigo Nogueira. “Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar.” 2015. Web. 16 Apr 2021.

Vancouver:

Padovan RN. Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar. [Internet] [Doctoral dissertation]. University of São Paulo; 2015. [cited 2021 Apr 16]. Available from: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-18082015-104331/.

Council of Science Editors:

Padovan RN. Degradação de hormônios em águas de abastecimento público por fotocatálise heterogênea solar. [Doctoral Dissertation]. University of São Paulo; 2015. Available from: http://www.teses.usp.br/teses/disponiveis/75/75135/tde-18082015-104331/

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