subject:(voltammetry)

Cornell University

1. Gailey, Alycia. Wireless Neurophysiology For The Study Of Behavior In Health And Disease .

Degree: 2014, Cornell University

► The objective of this study was the development of a simple but versatile wireless voltammetry device that can wirelessly record the release of oxidizable neurotransmitters… (more)

▼ The objective of this study was the development of a simple but versatile wireless voltammetry device that can wirelessly record the release of oxidizable neurotransmitters in the central nervous system of freely moving research animals and to demonstrate the utility of the device in freely behaving rats. The rationale behind this approach is in allowing freedom of movement of small animal subjects during electrochemical recording of neurotransmitter release. Neurotransmitters play a vital role in signaling within the central nervous system. A variety of neurological diseases are associated with neurotransmitter abnormalities. Parkinson's disease is an example of such a disease, characterized by dopamine depletion in the basal ganglia structure due to a death of dopaminergic neurons in the substantia nigra. With the use of the wireless voltammetry device presented here, the motor abnormalities associated with Parkinson's disease can be examined in animal models during recording experiments without the mess of wires. Chapter 1 gives an introduction to dopamine and its role in a variety of brain functions from motor control to the feeling of pleasure. Chapter 2 demonstrates the utility of the wireless device in the recording of dopamine release in vitro. By comparing results of the conventional wired setup to results of the wireless setup, the reliability of the wireless device in detecting dopamine release is established. Chapter 3 presents the use of the wireless device in recording dopamine release in a live rat. In these experiments, the circuit board and battery were placed inside of a pouch that was secured onto the back of a rat with a harness. Chapter 4 presents a discussion of implications for a broad array of future work regarding the role of wireless voltammetry in studying the neurobiological underpinnings of observable behavior. Chapter 5 presents an electronics curriculum for junior and senior level high school students in the local school district. Advisors/Committee Members: Linster, Christiane (committeeMember), Apsel, Alyssa B. (committeeMember), Guckenheimer, John Mark (committeeMember).

Subjects/Keywords: wireless; voltammetry; dopamine

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APA (6^th Edition):

Gailey, A. (2014). Wireless Neurophysiology For The Study Of Behavior In Health And Disease . (Thesis). Cornell University. Retrieved from http://hdl.handle.net/1813/37023

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):

Gailey, Alycia. “Wireless Neurophysiology For The Study Of Behavior In Health And Disease .” 2014. Thesis, Cornell University. Accessed September 21, 2019. http://hdl.handle.net/1813/37023.

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

MLA Handbook (7^th Edition):

Gailey, Alycia. “Wireless Neurophysiology For The Study Of Behavior In Health And Disease .” 2014. Web. 21 Sep 2019.

Vancouver:

Gailey A. Wireless Neurophysiology For The Study Of Behavior In Health And Disease . [Internet] [Thesis]. Cornell University; 2014. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/1813/37023.

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

Council of Science Editors:

Gailey A. Wireless Neurophysiology For The Study Of Behavior In Health And Disease . [Thesis]. Cornell University; 2014. Available from: http://hdl.handle.net/1813/37023

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

University of the Western Cape

2. Nohako, Kanyisa. Immunosensors developed on clathrate platform compounds .

Degree: 2013, University of the Western Cape

URL: http://hdl.handle.net/11394/4428

► Organic noncyclic compounds were used in the development of immunosensor for rapid fish species detection. Flourene derivatives show unique chemical and physical properties because they… (more)

▼ Organic noncyclic compounds were used in the development of immunosensor for rapid fish species detection. Flourene derivatives show unique chemical and physical properties because they contain a rigid planar biphenyl unit, and the facile substitution at C9 position of the flourene can improve the solubility and processability of materials containing flourene without significantly increasing of steric interactions in the compounds backbone. 9-(4- methoxyphenyl)-9H-xanthen-9-ol is bulky, rigid and has an hydroxyl moiety that may act as a hydrogen – bond donor, as well as a pyranyl oxygen which is a potential hydrogen –bond acceptor. We have successfully synthesised 9,9’-(ethyne1,2-diyl)bis(flouren-9-ol) by reflux method and 9-(4-methoxyphenyl)-9H-xanthen-9-ol through stirring at room temperature. The products were characterised using spectroscopic methods and were found to be both UV/Vis active (λmax = 400 nm flourene derivative and λmax = 337 nm xanthene derivative ) and fluorescent (440nm and 467nm flourene derivative and 344 and 380 xanthene derivative). These compounds were drop coated onto commercial glassy carbon electrode (GCE) to produce thin films. Scan rate dependent cyclic voltammetry (CV) confirmed the electrodynamics of the thin films to be consistent with monolayer diffusion (De = 1.37x10-21 cm2/s flourene derivative and De = 9.79x10-21 cm2/s xanthene derivative). Surface concentration was estimated to be 1.55x10-13 mol cm-2 flourene derivative and 2.00x10-13 mol cm-2. These compounds were used for the inclusion of parvalbumin antibodies immobilised onto clathrate platform by incubation and were evaluated as immunosensors for fish species identification. The antibody/antigen binding event was evaluated using UV/Vis spectroscopy, electrochemical impedance spectroscopy (EIS) and atomic force microscopy (AFM). The immunosensor response to parvalbumin in real samples of snoek (an indigenous fish species), tuna, fish paste, eyeshadow, lipstick, omega 3&6 and Scott's emulsion was evaluated. The sensitivity as calculated from EIS for each immunosensor was found to be 5.36x104 flourene derivative immunosensor and 4,11x104 xanthene derivative immunosensor and the detection limit of 1.50 pg/ml flourene derivative immunosensor and 2.42 pg/ml xanthene derivative immunosensor. The antibody/antigen binding was monitored as decrease in charge transfer resistance and increase in capacitance by EIS. The interfacial kinetics of the immunosensors were modelled as equivalent electrical circuit based on EIS data. The UV/Vis spectroscopy was used to confirm the binding of the antibody/antigen in solution by monitoring the intensity of the absorption peak. Advisors/Committee Members: Baker, P.G.L (advisor), Iwuoha, Emmanuel (advisor).

Subjects/Keywords: Clathrates; Immunosensors; Voltammetry

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APA (6^th Edition):

Nohako, K. (2013). Immunosensors developed on clathrate platform compounds . (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/4428

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):

Nohako, Kanyisa. “Immunosensors developed on clathrate platform compounds .” 2013. Thesis, University of the Western Cape. Accessed September 21, 2019. http://hdl.handle.net/11394/4428.

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

MLA Handbook (7^th Edition):

Nohako, Kanyisa. “Immunosensors developed on clathrate platform compounds .” 2013. Web. 21 Sep 2019.

Vancouver:

Nohako K. Immunosensors developed on clathrate platform compounds . [Internet] [Thesis]. University of the Western Cape; 2013. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/11394/4428.

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

Council of Science Editors:

Nohako K. Immunosensors developed on clathrate platform compounds . [Thesis]. University of the Western Cape; 2013. Available from: http://hdl.handle.net/11394/4428

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

Rhodes University

3. Kruid, Jan. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.

Degree: MS, Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2013, Rhodes University

URL: http://hdl.handle.net/10962/d1018238

► Oxytetracycline (OTC) is a broad spectrum antibiotic used extensively in the agricultural and human-health sector, and is effective against various gram positive and –negative bacteria… (more)

Subjects/Keywords: Voltammetry; Electrodes; Oxytetracycline; Carbon nanotubes

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APA (6^th Edition):

Kruid, J. (2013). Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. (Masters Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1018238

Chicago Manual of Style (16^th Edition):

Kruid, Jan. “Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.” 2013. Masters Thesis, Rhodes University. Accessed September 21, 2019. http://hdl.handle.net/10962/d1018238.

MLA Handbook (7^th Edition):

Kruid, Jan. “Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline.” 2013. Web. 21 Sep 2019.

Vancouver:

Kruid J. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. [Internet] [Masters thesis]. Rhodes University; 2013. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/10962/d1018238.

Council of Science Editors:

Kruid J. Voltammetric investigation of microbiological growth media and carbon nanotube modified electrodes : a case study of oxytetracycline. [Masters Thesis]. Rhodes University; 2013. Available from: http://hdl.handle.net/10962/d1018238

Rhodes University

4. Brimecombe, Rory Dennis. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.

Degree: Faculty of Science, Biochemistry, Microbiology and Biotechnology, 2011, Rhodes University

URL: http://hdl.handle.net/10962/d1009721

► Nanomaterials, in particular carbon nanotubes have been shown to exhibit favourable properties for the enhancement of electrochemical detection of target analytes in complex matrices. There… (more)

▼ Nanomaterials, in particular carbon nanotubes have been shown to exhibit favourable properties for the enhancement of electrochemical detection of target analytes in complex matrices. There is however scope for improvement in terms of the optimization thereof in electrochemical sensors surface modification. The aim of this thesis was to examine methods that would result in increased current response, lowered passivation and application of such modified surfaces with application to pharmaceutically and industrially relevant analytes. Current methods for enhancing the performance of carbon nanotubes include acid functionalization which not only increases the hydrophilicity of the nanotubes, and consequently their ability to provide stable (aqueous) suspensions, but also introduces electrochemically active sites. This particular approach is however not normalized in the literature. Over-exposure to acid treatment results in loss of structural integrity of the carbon nanotubes, and as such a fine balance exists between achieving these dual outcomes. Guided by high resolution scanning electron microscopy, atomic force microscopy, voltammetric and impedance studies, this thesis examined the role of the length of time of the acid functionalization process as well as the impact of activation of carbon nanotubes and fullerenes on electrochemical sensor performance. Based on desired charge transfer resistances, rate transfer coefficients and sensitivity towards redox probes the optimal length of acid functionalization for multiwalled carbon nanotubes was 9 hours and 4 hours for single-walled carbon nanotubes. Further improvements in the desired outcomes were achieved through electrochemical activation of the modified electrode surface by cycling in the presence of catechol, in a novel approach. By employing electrochemical impedance spectroscopy it was observed that catechol activation resulted in lowered charge transfer resistance, before and after activation, with functionalized multi-walled carbon nanotubes (9 hours) exhibiting the greatest decrease of 90 % and functionalized single-walled carbon nanotubes (4 hours), a 50 % decrease. Corresponding increases in the heterologous rate transfer coefficient showed a 770 % increase for functionalized multi-walled carbon nanotubes (9 hours), following catechol activation. Comparative observations for fullerenes following partial reduction in potassium hydroxide yielded a 30 % decrease in charge transfer resistance, with an increased heterologous rate transfer coefficient at a fullerene modified surface The performance of the nanomaterial modified electrodes was applied to the detection of wortmannin with applications in bioprocess control and in the pharmaceutical sector as well as to the detection and monitoring of the industrial dye Reactive red. Of particular relevance to these analytes was the assessment of the nanomaterial modified electrodes for enhanced stability, reproducibility, sensitivity and decreased passivation effects. In this study the first known account of…

Subjects/Keywords: Voltammetry; Electrochemistry; Nanotubes; Nanostructured materials

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APA (6^th Edition):

Brimecombe, R. D. (2011). Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1009721

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):

Brimecombe, Rory Dennis. “Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.” 2011. Thesis, Rhodes University. Accessed September 21, 2019. http://hdl.handle.net/10962/d1009721.

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

MLA Handbook (7^th Edition):

Brimecombe, Rory Dennis. “Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application.” 2011. Web. 21 Sep 2019.

Vancouver:

Brimecombe RD. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. [Internet] [Thesis]. Rhodes University; 2011. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/10962/d1009721.

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

Council of Science Editors:

Brimecombe RD. Nanomaterial modified electrodes : optimization of voltammetric sensors for pharmaceutical and industrial application. [Thesis]. Rhodes University; 2011. Available from: http://hdl.handle.net/10962/d1009721

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

NSYSU

5. Liao, Chin-yi. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.

Degree: Master, Electro-Optical Engineering, 2011, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

► In this research,we used the electrochemical (cyclic voltammetry) method to synthesize (polyaniline) PANI thin film on the top of ITO substrate which applied extensively on… (more)

Subjects/Keywords: PANI; PLED; cyclic voltammetry

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APA (6^th Edition):

Liao, C. (2011). The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

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):

Liao, Chin-yi. “The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.” 2011. Thesis, NSYSU. Accessed September 21, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128.

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

MLA Handbook (7^th Edition):

Liao, Chin-yi. “The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes.” 2011. Web. 21 Sep 2019.

Vancouver:

Liao C. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. [Internet] [Thesis]. NSYSU; 2011. [cited 2019 Sep 21]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128.

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

Council of Science Editors:

Liao C. The study of electrochemical deposited PANI thin film for polymer organic light emitting diodes. [Thesis]. NSYSU; 2011. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0824111-113128

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

Oregon State University

6. Dewald, Lamar Robert. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.

Degree: PhD, Chemistry, 1984, Oregon State University

URL: http://hdl.handle.net/1957/41147

► An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of… (more)

▼ An automated instrument based on a single-board microcomputer was developed for use in voltammetric analyses. Operator input of numerous experiment parameters allows any type of voltammetric analysis to be implemented and multiple scans to be run unattended. A three operational amplifier potentiostat is used to control the cell voltage and convert the cell current to a voltage signal. A 16-bit digital-to-analog converter allows the computer to determine the cell voltage. A 12-bit analog-to-digital converter converts the signal to digital form for the computer to manipulate, store and display. The potentiostat is isolated electrically from the computer through the use of opto-isolators. The computer is interfaced to solid state switches, 3-way valves and pumps for control of electrode rotation, outgassing of 0₂. filling of the cell with a buffer solution, and evacuation of cell solution. Injection of spike solutions and rapid washing of the cell is also under computer control. Data manipulation handled by the microcomputer includes waveform generation, data acquisition, automatic background acquisition and subtraction, polynomial fitting of the baseline, and peak potential and peak current calculations. Instrument parameters were optimized in the differential pulse anodic stripping voltammetry mode with a rotating thin mercury film electrode on a glassy carbon disc support. With this system the heavy metals, Zn, Cd, Pb and Cu, were quantitated at 1 μg/L levels with five minute deposition periods and at 0.1 μg / L levels with thirty minute deposition. Metal speciation studies were carried out to evaluate the automation abilities of the instrument and to observe and demonstrate important problems in metal speciation studies with ASV. Pseudopol arography was used to confirm that EDTA formed a quasi-labile complex with Cu. Humic acid was adsorbed by the mercury electrode and reduced the response to metals. The ASV determinable Zn, Cd, Pb and Cu concentrations in a river water sample were found to be 4.0, 0.32, 0.15 and 0.40 μg/L, respectively. Some complexation capacity was observed as was adsorption of organics onto the electrode. Advisors/Committee Members: Ingle, James D. Jr (advisor).

Subjects/Keywords: Voltammetry – Automation

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APA (6^th Edition):

Dewald, L. R. (1984). A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. (Doctoral Dissertation). Oregon State University. Retrieved from http://hdl.handle.net/1957/41147

Chicago Manual of Style (16^th Edition):

Dewald, Lamar Robert. “A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.” 1984. Doctoral Dissertation, Oregon State University. Accessed September 21, 2019. http://hdl.handle.net/1957/41147.

MLA Handbook (7^th Edition):

Dewald, Lamar Robert. “A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation.” 1984. Web. 21 Sep 2019.

Vancouver:

Dewald LR. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. [Internet] [Doctoral dissertation]. Oregon State University; 1984. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/1957/41147.

Council of Science Editors:

Dewald LR. A microcomputer automated anodic stripping voltammetric analyzer for trace heavy metal speciation. [Doctoral Dissertation]. Oregon State University; 1984. Available from: http://hdl.handle.net/1957/41147

Montana State University

7. Bonsteel, Russell Allen. A micro computer controlled high speed high resolution cyclic voltammeter.

Degree: College of Letters & Science, 1986, Montana State University

URL: https://scholarworks.montana.edu/xmlui/handle/1/6630

Subjects/Keywords: Voltammetry.; Voltameters.

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APA (6^th Edition):

Bonsteel, R. A. (1986). A micro computer controlled high speed high resolution cyclic voltammeter. (Thesis). Montana State University. Retrieved from https://scholarworks.montana.edu/xmlui/handle/1/6630

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):

Bonsteel, Russell Allen. “A micro computer controlled high speed high resolution cyclic voltammeter.” 1986. Thesis, Montana State University. Accessed September 21, 2019. https://scholarworks.montana.edu/xmlui/handle/1/6630.

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

MLA Handbook (7^th Edition):

Bonsteel, Russell Allen. “A micro computer controlled high speed high resolution cyclic voltammeter.” 1986. Web. 21 Sep 2019.

Vancouver:

Bonsteel RA. A micro computer controlled high speed high resolution cyclic voltammeter. [Internet] [Thesis]. Montana State University; 1986. [cited 2019 Sep 21]. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6630.

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

Council of Science Editors:

Bonsteel RA. A micro computer controlled high speed high resolution cyclic voltammeter. [Thesis]. Montana State University; 1986. Available from: https://scholarworks.montana.edu/xmlui/handle/1/6630

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

University of Victoria

8. Qile, Geer. Platinum oxide reduction kinetics on polycrystalline platinum electrodes.

Degree: Department of Chemistry, 2016, University of Victoria

URL: http://hdl.handle.net/1828/7569

► A kinetic study on polycrystalline platinum (Pt) in sulphuric acid is presented. An electrochemical kinetic mechanism of Pt oxide reduction and surface oxide structures are… (more)

Subjects/Keywords: platinum; Voltammetry; Electrochemical analysis; oxidation

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APA (6^th Edition):

Qile, G. (2016). Platinum oxide reduction kinetics on polycrystalline platinum electrodes. (Masters Thesis). University of Victoria. Retrieved from http://hdl.handle.net/1828/7569

Chicago Manual of Style (16^th Edition):

Qile, Geer. “Platinum oxide reduction kinetics on polycrystalline platinum electrodes.” 2016. Masters Thesis, University of Victoria. Accessed September 21, 2019. http://hdl.handle.net/1828/7569.

MLA Handbook (7^th Edition):

Qile, Geer. “Platinum oxide reduction kinetics on polycrystalline platinum electrodes.” 2016. Web. 21 Sep 2019.

Vancouver:

Qile G. Platinum oxide reduction kinetics on polycrystalline platinum electrodes. [Internet] [Masters thesis]. University of Victoria; 2016. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/1828/7569.

Council of Science Editors:

Qile G. Platinum oxide reduction kinetics on polycrystalline platinum electrodes. [Masters Thesis]. University of Victoria; 2016. Available from: http://hdl.handle.net/1828/7569

McGill University

9. Weber, Stephen G. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.

Degree: PhD, Department of Chemistry, 1979, McGill University

URL: http://digitool.library.mcgill.ca/thesisfile151787.pdf

►

Note:

The concept of the diffusion layer, generally used in a steady-state context, is used as a time-dependent or spacedependent unknown in the differential equations… (more)

▼

Note:

The concept of the diffusion layer, generally used in a steady-state context, is used as a time-dependent or spacedependent unknown in the differential equations of diffusion. The electrochemical current which is predicted with this approximation is compared to exact mathematical treatments for a potentiostatic transient in a thin-layer cell and for a potentiostatic transient with a CE mechanism. Channel electrodes are studied using this approximation. The validity of the expressions for ordinary three-electrode cells and for four-electrode cells is proven experimentally. The mathematical description of the channel electrode is used to determine optimum operating conditions under a variety of circumstances. Conditions under which a channel electrode will not detect the product of a preceding homogeneous reaction are calculated. Employing a channel electrode under these conditions allows the performance of a homogeneous voltammetric immunoassay.

Le concept de zone de diffusion, généralement utilise dans un contexte d'état stationnaire, est employé comme paramètre temporalement et spacialement dépendant dans l'équation différentielle de diffusion. Le courant électrochimique prédit, par cette approximation, est comparé au traitement mathématique rigoureux d'un potentiel fixe dans une cellule à couche mince et d'un potentiel fixe avec un mécanisme chimique électrochimique (CE). Les électrodes de type "canal" sont étudiées selon cette approximation. La validité de ce traitement pour une cellule à trois ou quatre électrodes est prouvée expérimentalement. Le traitement mathématique de l'électrode du type "canal" est employé pour la détermination des conditions optimum d'opération au cours d'une variété de conditions expérimentales. Les conditions, pour lesquelles une électrode du type "canal" ne détectera pas le produit d'une réaction homogène précédente, sont calculées. Dans ces conditions, une électrode du type "canal" permet la réalisation d'une détermination immunologique voltamétrique homogène.

Advisors/Committee Members: ().

Subjects/Keywords: Immunoassay.; Voltammetry.

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APA (6^th Edition):

Weber, S. G. (1979). Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. (Doctoral Dissertation). McGill University. Retrieved from http://digitool.library.mcgill.ca/thesisfile151787.pdf

Chicago Manual of Style (16^th Edition):

Weber, Stephen G. “Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.” 1979. Doctoral Dissertation, McGill University. Accessed September 21, 2019. http://digitool.library.mcgill.ca/thesisfile151787.pdf.

MLA Handbook (7^th Edition):

Weber, Stephen G. “Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay.” 1979. Web. 21 Sep 2019.

Vancouver:

Weber SG. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. [Internet] [Doctoral dissertation]. McGill University; 1979. [cited 2019 Sep 21]. Available from: http://digitool.library.mcgill.ca/thesisfile151787.pdf.

Council of Science Editors:

Weber SG. Theoretical aspects of channel electrodes : application to the development of voltammetric immunoassay. [Doctoral Dissertation]. McGill University; 1979. Available from: http://digitool.library.mcgill.ca/thesisfile151787.pdf

University of Houston

10. Appanapalli, Sridhar Reddy. Organic & Polymer-based Lithium Ion Batteries.

Degree: Mechanical Engineering, Department of, 2012, University of Houston

URL: http://hdl.handle.net/10657/772

► Polymer-based electrode and electrolyte components can pave the way for safe and flexible Lithium ion batteries. A total plastic battery requires an electrolyte layer to… (more)

Subjects/Keywords: polymer; cyclic voltammetry; Mechanical engineering

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APA (6^th Edition):

Appanapalli, S. R. (2012). Organic & Polymer-based Lithium Ion Batteries. (Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/772

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):

Appanapalli, Sridhar Reddy. “Organic & Polymer-based Lithium Ion Batteries.” 2012. Thesis, University of Houston. Accessed September 21, 2019. http://hdl.handle.net/10657/772.

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

MLA Handbook (7^th Edition):

Appanapalli, Sridhar Reddy. “Organic & Polymer-based Lithium Ion Batteries.” 2012. Web. 21 Sep 2019.

Vancouver:

Appanapalli SR. Organic & Polymer-based Lithium Ion Batteries. [Internet] [Thesis]. University of Houston; 2012. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/10657/772.

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

Council of Science Editors:

Appanapalli SR. Organic & Polymer-based Lithium Ion Batteries. [Thesis]. University of Houston; 2012. Available from: http://hdl.handle.net/10657/772

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

11. Fitzgerald, William F. A study of certain trace metals in sea water using anodic stripping voltammetry.

Degree: 1970, MIT and Woods Hole Oceanographic Institution

URL: http://hdl.handle.net/1912/1245

► Anodic stripping voltammetry utilizing a thin film mercury composite graphite electrode has been evaluated and applied for the direct analysis of the metals, Zn, Cu,… (more)

▼ Anodic stripping voltammetry utilizing a thin film mercury composite graphite electrode has been evaluated and applied for the direct analysis of the metals, Zn, Cu, Pb, and Cd in sea water. The electrode was observed to follow theoretical behavior for thin film electrodes and the technique was found not to be adversely affected by dissolved organic material in sea water. Good precision (ca., 5%) was obtained in both coastal and open ocean waters at the in situ concentrations of Zn, Cu, Pb, and Cd. It was shown that this method is at present most suitable for measurements of Cu, Pb, and Cd in sea water. Evidence is given suggesting that Ni may interfere with the determination of Zn through formation of an intermetallic compound, and further studies are indicated to understand this phenomenon. The anodic stripping apparatus was adapted and used conveniently on shipboard. It was demonstrated that stripping analysis could be combined with a method for the destruction of dissolved organic matter (photo-oxidation with ultra-violet radiation), and with an addification procedure to obtain measurements of trace metal speciation in sea water. An argument for the existence of Cu-aspartic acid chelates in sea water has been described theoretically and demonstrated empirically; suggesting that a significant fraction of Cu and other trace metals may be expected to be organically sequestered in sea water. A study of coastal waters employing the total method (anodic stripping-photo-oxidation-acidification) indicated the presence of a significant group of organic ligands that complex Cu (ca., 60%). It was also shown that the waters subject to gross pollution contain about 30% of the total Cu in very stable organic complexes that release Cu only when the dissolved organic matter is destroyed, and not when the pH of this sea water is adjusted to 3. An open ocean trace metal study of a thermal-front zone in the western Sargasso Sea gave data for Cu, Zn, Pb, and Cd that compared favorably with other relevant investigations. Higher free metal concentrations were observed south of the front than to the north, providing further evidence that these fronts may mark a change between southern and northern conditions in the Sargasso Sea. Data obtained from shipboard analyses using the total analytical method indicates the presence of weak organic complexes with Cu and Pb in open ocean waters.

Subjects/Keywords: Seawater; Voltammetry

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

APA (6^th Edition):

Fitzgerald, W. F. (1970). A study of certain trace metals in sea water using anodic stripping voltammetry. (Thesis). MIT and Woods Hole Oceanographic Institution. Retrieved from http://hdl.handle.net/1912/1245

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):

Fitzgerald, William F. “A study of certain trace metals in sea water using anodic stripping voltammetry.” 1970. Thesis, MIT and Woods Hole Oceanographic Institution. Accessed September 21, 2019. http://hdl.handle.net/1912/1245.

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

MLA Handbook (7^th Edition):

Fitzgerald, William F. “A study of certain trace metals in sea water using anodic stripping voltammetry.” 1970. Web. 21 Sep 2019.

Vancouver:

Fitzgerald WF. A study of certain trace metals in sea water using anodic stripping voltammetry. [Internet] [Thesis]. MIT and Woods Hole Oceanographic Institution; 1970. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/1912/1245.

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

Council of Science Editors:

Fitzgerald WF. A study of certain trace metals in sea water using anodic stripping voltammetry. [Thesis]. MIT and Woods Hole Oceanographic Institution; 1970. Available from: http://hdl.handle.net/1912/1245

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

12. Ndjeri-Ndjouhou, Marthe. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.

Degree: Docteur es, Chimie, 2012, Evry-Val d'Essonne

URL: http://www.theses.fr/2012EVRY0001

►

Ce travail de thèse a eu pour thème central la birnessite, un oxyde de manganèse ubiquiste dans le milieu naturel et jouant un rôle fondamental… (more)

▼

Ce travail de thèse a eu pour thème central la birnessite, un oxyde de manganèse ubiquiste dans le milieu naturel et jouant un rôle fondamental dans la géochimie des sols. La première partie de cette thèse a été consacrée à l’électrodépôt et à la caractérisation de la birnessite par des méthodes électrochimiques couplées à la diffraction des rayons X. La caractérisation DRX in-situ au cours de l’électrodépôt a permis de mettre en évidence, lorsqu’on est en présence du cation électrolytique Na+, la formation d’un précurseur, la busérite, alors qu’en présence du cation électrolytique K+, la synthèse aboutit directement à la birnessite sans formation d’intermédiaire. La réduction électrochimique de la birnessite a également été étudiée en fonction du milieu ([Mn(II)], pH, potentiel). Cette dernière se réduit en hausmannite(Mn3O4), feitknechtite (-MnOOH), ou en composé amorphe de Mn(II), selon les conditions expérimentales. Dans la deuxième partie de cette thèse, les films minces ont été utilisés pour étudier la réactivité de la birnessite vis-à-vis du glyphosate, ainsi que celle de son principal métabolite l’AMPA (acide amino-méthyl-phosphonique). Le glyphosate est dégradé avec formation simultanée d’AMPA, de formaldéhyde, d’ions phosphate, nitrate et ammonium sans modification macroscopique de la birnessite. Les quatre derniers sous-produits sont également obtenus lors de la dégradation de l’AMPA par la birnessite. Les bons rendements de dégradation obtenus au cours des interactions glyphosate/birnessite et AMPA/birnessite laissent envisager une possible application de ces échantillons pour le traitement des eaux usées.

This thesis has been focused on birnessite, a ubiquitous manganese oxide in the environment, which plays a fundamental role in soil geochemistry. The first part of this thesis has been devoted to the electrodeposition and the characterizations of birnessite by electrochemical methods coupled with X-ray diffraction. The in-situ XRD characterization during electrodeposition has shown, in presence of the electrolytic cation Na+, the formation of a precursor, buserite, whereas no precursor is formed in presence of electrolytic cation K+, the synthesis leading directly to birnessite. The electrochemical reduction of birnessite has also been studied in function of the medium ([Mn (II)], pH, potential). Birnessite is reduced into hausmannite (Mn3O4), feitknechtite (-MnOOH), or an amorphous compound of Mn (II), as function of experimental conditions. In the second part of this thesis, the thin films have been used to study the reactivity of birnessite for degrading glyphosate and its metabolite AMPA (amino-methyl phosphonic). Glyphosate is degraded with simultaneous formation of AMPA, formaldehyde, phosphate ion, nitrate ion and ammonium ion, without macroscopic modification of birnessite. The last four by-products are also obtained during the degradation of AMPA by birnessite. The good yields obtained during glyphosate / birnessite and AMPA / birnessite interactions permit to envisage a possible…

Advisors/Committee Members: Chaussé, Annie (thesis director).

Subjects/Keywords: Voltampérométrie cyclique; Cyclic voltammetry

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APA (6^th Edition):

Ndjeri-Ndjouhou, M. (2012). Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. (Doctoral Dissertation). Evry-Val d'Essonne. Retrieved from http://www.theses.fr/2012EVRY0001

Chicago Manual of Style (16^th Edition):

Ndjeri-Ndjouhou, Marthe. “Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.” 2012. Doctoral Dissertation, Evry-Val d'Essonne. Accessed September 21, 2019. http://www.theses.fr/2012EVRY0001.

MLA Handbook (7^th Edition):

Ndjeri-Ndjouhou, Marthe. “Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate.” 2012. Web. 21 Sep 2019.

Vancouver:

Ndjeri-Ndjouhou M. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. [Internet] [Doctoral dissertation]. Evry-Val d'Essonne; 2012. [cited 2019 Sep 21]. Available from: http://www.theses.fr/2012EVRY0001.

Council of Science Editors:

Ndjeri-Ndjouhou M. Synthèse et caractérisation de la birnessite électrodéposée : application à la dégradation du glyphosate : Synthesis and characterization of birnessite electrodeposited : application to the degradation of glyphosate. [Doctoral Dissertation]. Evry-Val d'Essonne; 2012. Available from: http://www.theses.fr/2012EVRY0001

Michigan State University

13. Olmstead, Michael Lee. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.

Degree: PhD, Department of Chemistry, 1968, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:36015

Subjects/Keywords: Voltammetry; Electrochemistry

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

APA (6^th Edition):

Olmstead, M. L. (1968). Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. (Doctoral Dissertation). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:36015

Chicago Manual of Style (16^th Edition):

Olmstead, Michael Lee. “Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.” 1968. Doctoral Dissertation, Michigan State University. Accessed September 21, 2019. http://etd.lib.msu.edu/islandora/object/etd:36015.

MLA Handbook (7^th Edition):

Olmstead, Michael Lee. “Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions.” 1968. Web. 21 Sep 2019.

Vancouver:

Olmstead ML. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. [Internet] [Doctoral dissertation]. Michigan State University; 1968. [cited 2019 Sep 21]. Available from: http://etd.lib.msu.edu/islandora/object/etd:36015.

Council of Science Editors:

Olmstead ML. Theory of cyclic voltammetry for electrochemically initiated dimerization and disproportionation reactions. [Doctoral Dissertation]. Michigan State University; 1968. Available from: http://etd.lib.msu.edu/islandora/object/etd:36015

Boston University

14. Levin, Benjamin Diamon. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.

Degree: PhD, Chemistry, 2013, Boston University

URL: http://hdl.handle.net/2144/14093

► Heme containing proteins and their reactivity play a central role in biological systems; they have a vast range of functions including electron transfer, catalysis, and… (more)

▼ Heme containing proteins and their reactivity play a central role in biological systems; they have a vast range of functions including electron transfer, catalysis, and respiration. Cytochromes c and heme c containing proteins have been used widely as model systems to understand how structure and dynamics lead toward function. In this thesis, a variety of biophysical methods are used to investigate two heme c containing model systems to gain insight into how redox potential and reactivity are modulated through changes in the local environment. Mitochondrial cytochrome c undergoes several pH dependent conformational rearrangements that involve different heme ligation and have associated changes in redox potential. Under basic conditions (pH greater than 8), the axial methionine (Met) residue is replaced by one of several nitrogen based ligands, usually a nearby lysine residue, and is coined the "alkaline transition". It is accompanied by a large downward shift in redox potential. The functional utility of this conformational change is not fully understood however it is strongly implicated in the signaling cascade for apoptosis. Bacterial monoheme cytochromes c exhibit similar phenomenological Met-loss behavior as a function of electrode material. In Chapter 2 we utilize Hydrogenobacter thermophilus cytochrome c552 as a model system for the assessment of redox thermodynamics and changes in redox potential associated with the Met-loss form. In Chapter 3 we extend our investigation to homologous cytochromes c. Bacterial cytochrome c peroxidases catalyze the two-electron reduction of hydrogen peroxide to water utilizing cytochrome c as an endogenous electron donor. Chapter 4 describes the first recombinant construct of the diheme Nitrosomonas europaea cytochrome c peroxidase (Ne CCP); a defining family member of constitutively active cytochrome c peroxidases. A variety of biophysical techniques were used to confirm similarity between the recombinant Ne CCP and native enzyme. Chapter 5 extends our investigation to the role of constitutively conserved glutamine and glutamic acid residues within the active site, and two conserved tryptophan residues; the first situated between hemes and the second distal to the active site. In Chapter 6, stopped flow spectroscopy is used to investigate the first intermediates of the Ne CCP catalytic mechanism.

Subjects/Keywords: Chemistry; Cyclic voltammetry; Cytochrome c; Diheme peroxidase; Protein film voltammetry

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APA (6^th Edition):

Levin, B. D. (2013). Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. (Doctoral Dissertation). Boston University. Retrieved from http://hdl.handle.net/2144/14093

Chicago Manual of Style (16^th Edition):

Levin, Benjamin Diamon. “Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.” 2013. Doctoral Dissertation, Boston University. Accessed September 21, 2019. http://hdl.handle.net/2144/14093.

MLA Handbook (7^th Edition):

Levin, Benjamin Diamon. “Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase.” 2013. Web. 21 Sep 2019.

Vancouver:

Levin BD. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. [Internet] [Doctoral dissertation]. Boston University; 2013. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/2144/14093.

Council of Science Editors:

Levin BD. Probing the structure-function relationship of heme c containing bacterial proteins: monoheme cytochromes c and diheme cytochrome c peroxidase. [Doctoral Dissertation]. Boston University; 2013. Available from: http://hdl.handle.net/2144/14093

Universidade Federal de Sergipe

15. Ângelo Francklin Pitanga. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.

Degree: 2009, Universidade Federal de Sergipe

URL: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

►

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of… (more)

▼

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of electrode of carbon paste was modified with hemin. The tests were carried out in solution tampão Britton-Robinson (BR) in pH 2, with an electrode compounded by 50% of carbon past and 50% of hemin, for having the best analytical answer to the compound in question. Based on the electrochemical parameters that were taken of the technique cyclic voltammetry, differential pulse and of the square wave, it was possible diagnostic some information that was connected to the reaction mechanism such as: the reversibility of the process, the existence or not of adsorption process and the number of electrons that is involved in the electrochemical reactions. The resulted said that the reaction of ketoconazole reduction is irreversible, with one definite peaks at 1,44V device phenomenon of reduction do CTZ. The analytical methodology that was developed is fast, sensible and precise, to routine analysis on pills of CTZ. The analytic curve was linear in the concentration area between 1,8 and 5,5.106 mol/L, with detection limit 1,7.107 mol/L and quantification limit in 5,6.107 mol/L.

Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de eletrodo de pasta de carbono modificado com hemina. Os experimentos foram realizados em solução tampão Britton-Robinson (BR) no pH 2, com uma composição do eletrodo de 50% de pasta de carbono e 50% de hemina, pois apresenta a melhor resposta analítica para o referido composto. Com base nos parâmetros eletroquímicos extraídos das técnicas de voltametria cíclica, de pulso diferencial e de onda quadrada, foi possível diagnosticar algumas informações relacionadas com o mecanismo da reação como: a reversibilidade do processo, a presença ou não de processos de adsorção e também o número de elétrons envolvidos nas reações eletroquímicas. Os resultados indicaram que a reação de redução do cetoconazol é irreversível com um pico a 1,44V devido ao fenômeno de redução de CTZ. A metodologia analítica desenvolvida é rápida, sensível e precisa para a análise de rotina de comprimidos de CTZ. A curva analítica foi linear na região de concentração entre 1,8 a 5,5.106 mol/L, com limite de detecção de 1,7.107mol/L e com limite de quantificação de 5,6.107 mol/L.

Advisors/Committee Members: Maria de Lara Palmeira Macedo Arguelho.

Subjects/Keywords: hemina; ketoconazole; QUIMICA; voltammetry; voltametria; hemin; Cetoconazol

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APA (6^th Edition):

Pitanga, �. F. (2009). Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. (Thesis). Universidade Federal de Sergipe. Retrieved from http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

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):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Thesis, Universidade Federal de Sergipe. Accessed September 21, 2019. http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209.

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

MLA Handbook (7^th Edition):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Web. 21 Sep 2019.

Vancouver:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2019 Sep 21]. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209.

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

Council of Science Editors:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://www.ufs.br/bicen//tde_busca/arquivo.php?codArquivo=209

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

Universidade Federal de Sergipe

16. Ângelo Francklin Pitanga. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.

Degree: 2009, Universidade Federal de Sergipe

URL: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

►

Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de… (more)

▼

Neste trabalho são abordados os estudos eletroquímicos bem como o desenvolvimento de metodologia analítica para a determinação de cetoconazol em formulações farmacêuticas com auxílio de eletrodo de pasta de carbono modificado com hemina. Os experimentos foram realizados em solução tampão Britton-Robinson (BR) no pH 2, com uma composição do eletrodo de 50% de pasta de carbono e 50% de hemina, pois apresenta a melhor resposta analítica para o referido composto. Com base nos parâmetros eletroquímicos extraídos das técnicas de voltametria cíclica, de pulso diferencial e de onda quadrada, foi possível diagnosticar algumas informações relacionadas com o mecanismo da reação como: a reversibilidade do processo, a presença ou não de processos de adsorção e também o número de elétrons envolvidos nas reações eletroquímicas. Os resultados indicaram que a reação de redução do cetoconazol é irreversível com um pico a 1,44V devido ao fenômeno de redução de CTZ. A metodologia analítica desenvolvida é rápida, sensível e precisa para a análise de rotina de comprimidos de CTZ. A curva analítica foi linear na região de concentração entre 1,8 a 5,5.106 mol/L, com limite de detecção de 1,7.107mol/L e com limite de quantificação de 5,6.107 mol/L.

In this work electrochemical studies are broached as well the development of an analytical methodology to determinate ketoconazole in pharmaceuticals formulations with the help of electrode of carbon paste was modified with hemin. The tests were carried out in solution tampão Britton-Robinson (BR) in pH 2, with an electrode compounded by 50% of carbon past and 50% of hemin, for having the best analytical answer to the compound in question. Based on the electrochemical parameters that were taken of the technique cyclic voltammetry, differential pulse and of the square wave, it was possible diagnostic some information that was connected to the reaction mechanism such as: the reversibility of the process, the existence or not of adsorption process and the number of electrons that is involved in the electrochemical reactions. The resulted said that the reaction of ketoconazole reduction is irreversible, with one definite peaks at 1,44V device phenomenon of reduction do CTZ. The analytical methodology that was developed is fast, sensible and precise, to routine analysis on pills of CTZ. The analytic curve was linear in the concentration area between 1,8 and 5,5.106 mol/L, with detection limit 1,7.107 mol/L and quantification limit in 5,6.107 mol/L.

Advisors/Committee Members: Maria de Lara Palmeira Macedo Arguelho.

Subjects/Keywords: Cetoconazol; hemina; voltametria; QUIMICA; ketoconazole; hemin; voltammetry

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

APA (6^th Edition):

Pitanga, �. F. (2009). Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. (Thesis). Universidade Federal de Sergipe. Retrieved from http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

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):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Thesis, Universidade Federal de Sergipe. Accessed September 21, 2019. http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209.

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

MLA Handbook (7^th Edition):

Pitanga, Ângelo Francklin. “Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina.” 2009. Web. 21 Sep 2019.

Vancouver:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Internet] [Thesis]. Universidade Federal de Sergipe; 2009. [cited 2019 Sep 21]. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209.

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

Council of Science Editors:

Pitanga �F. Desenvolvimento de metodologia eletroanalítica para a determinação de cetoconazol em formulações farmacêuticas utilizando eletrodo de pasta de carbono modificado hemina. [Thesis]. Universidade Federal de Sergipe; 2009. Available from: http://bdtd.ufs.br/tde_busca/arquivo.php?codArquivo=209

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

Deakin University

17. Luscombe, Darryl L. Studies with voltammetric microdisk electrodes.

Degree: 1991, Deakin University

URL: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

[No Abstract]

Subjects/Keywords: voltammetry; electrodes; microdisk

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APA (6^th Edition):

Luscombe, D. L. (1991). Studies with voltammetric microdisk electrodes. (Thesis). Deakin University. Retrieved from http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

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):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Thesis, Deakin University. Accessed September 21, 2019. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433.

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

MLA Handbook (7^th Edition):

Luscombe, Darryl L. “Studies with voltammetric microdisk electrodes.” 1991. Web. 21 Sep 2019.

Vancouver:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Internet] [Thesis]. Deakin University; 1991. [cited 2019 Sep 21]. Available from: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433.

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

Council of Science Editors:

Luscombe DL. Studies with voltammetric microdisk electrodes. [Thesis]. Deakin University; 1991. Available from: http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051201.153433

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

18. Leena, R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.

Degree: Applied Chemistry, 2012, Cochin University of Science and Technology

URL: http://dyuthi.cusat.ac.in/purl/3829

►

Voltammetric methods are applicable for the determination of a wide variety of both organic and inorganic species. Its features are compact equipment, simple sample preparation,… (more)

Subjects/Keywords: Electrodics; electrogravimetry; coulometry; potentiometry; voltammetry; buffer solutions

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APA (6^th Edition):

Leena, R. (2012). Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. (Thesis). Cochin University of Science and Technology. Retrieved from http://dyuthi.cusat.ac.in/purl/3829

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):

Leena, R. “Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.” 2012. Thesis, Cochin University of Science and Technology. Accessed September 21, 2019. http://dyuthi.cusat.ac.in/purl/3829.

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

MLA Handbook (7^th Edition):

Leena, R. “Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals.” 2012. Web. 21 Sep 2019.

Vancouver:

Leena R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. [Internet] [Thesis]. Cochin University of Science and Technology; 2012. [cited 2019 Sep 21]. Available from: http://dyuthi.cusat.ac.in/purl/3829.

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

Council of Science Editors:

Leena R. Chemically Modified Glassy Carbon Electrode as Sensors for Various Pharmaceuticals. [Thesis]. Cochin University of Science and Technology; 2012. Available from: http://dyuthi.cusat.ac.in/purl/3829

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

University of Newcastle Upon Tyne

19. Aslanoglu, Mehmet. The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions.

Degree: PhD, 1997, University of Newcastle Upon Tyne

URL: http://hdl.handle.net/10443/531

► This thesis reports voltammetric and quartz crystal microgravimetric studies of the binding of metal complexes to nucleic acids in solution and immobilised on metal surfaces.… (more)

▼ This thesis reports voltammetric and quartz crystal microgravimetric studies of the binding of metal complexes to nucleic acids in solution and immobilised on metal surfaces. Cyclic voltam iet y and steady-state microelectrode voltammetsy were applied to the solution phase interactions between metal complexes and nucleic acids. The binding constants were obtained by the analysis of bound and free metal complex concentrations. The binding of N, N, N-1-propylthyminedimethylaminomethylferrocene (Fc-Th), N, N, Ntrimethylaminomethylferrocene (Fc-NMe3), bis(hexamethybenzene)iron(II), hexamuiiineruthenium( III), tris(1,10-phenantlu-oline)iron(II) and tris-(bipyridyl)iron(II) to DNA and RNA was observed. The application of microelectrode voltammetry for metal complexnucleic acid binding studies has not been reported before and this thesis demonstrates the advantages of the method due to increased signal-to noise ratio and better discrimination between free and nucleic acid-bound metal complex. These voltammetric results showed the binding of Fc-Th to DNA is stronger than the binding of Fc-NMe3 to DNA, indicating that even a single nucleobase can influence the binding. The binding of singly charged feirocenyl derivatives to DNA or RNA is mainly electrostatic plus some non-electrostatic contribution from interaction of the thymine with DNA. Fe(bz)22 binds to DNA electrostatically and the binding is senstive to ionic strength. Ru(NH3)63+ binds more strongly to DNA due to its higher charge. The binding of Fe(phen)32+, a known intercalator, is stronger than the binding of Fe(bipy)32+ to DNA and the measured binding constants were in agreement with previous reports, however more precise data could be obtained using the microelectrode technique devised in this thesis. This thesis also describes a novel modification of gold and platinum surfaces by the adsorption of 4-mercaptopyridine and subsequent methylation with methyliodide to produce a positively charged suface at which DNA adsorbs strongly. Cyclic voltammetry was applied to quantify the binding of Fc-Th, Fc-NMe3 , hexammineruthenium(II), and tris(1,10-phenanthroline) iron(II) to DNA or RNA immobilised on a gold electrode. A detectable binding of Fc-Th, Ru(NH3)63+ to DNA was observed, while no bound. FcNMe3 and Fe(phen)32 were detected using cyclic voltammetry. The difference in binding to immobilised DNA compared to dissolved DNA could be rationalised by the effect of the electrostatic interactions of the metal complexes with the charged pyridinium monolayer. Quartz crystal microfravimetry was used to estimate the surface coverage of DNA, Fc-Th, Ru(NH3)63+ and Fe(phen); '+on gold and platinum crystals modified as above. Crystal admittance measurements showed no significant change on DNA adsorption indicating approximate rigid-layer behaviour. In agreement with the CV studies no binding of Fc- NMe3 was detected. Some binding of Fe(phen)32 was observed and the negative result of the CV experiment may be due to instability of the monolayer at the high potentials required to…

Subjects/Keywords: 541; Voltammetry; DNA

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APA (6^th Edition):

Aslanoglu, M. (1997). The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions. (Doctoral Dissertation). University of Newcastle Upon Tyne. Retrieved from http://hdl.handle.net/10443/531

Chicago Manual of Style (16^th Edition):

Aslanoglu, Mehmet. “The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions.” 1997. Doctoral Dissertation, University of Newcastle Upon Tyne. Accessed September 21, 2019. http://hdl.handle.net/10443/531.

MLA Handbook (7^th Edition):

Aslanoglu, Mehmet. “The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions.” 1997. Web. 21 Sep 2019.

Vancouver:

Aslanoglu M. The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions. [Internet] [Doctoral dissertation]. University of Newcastle Upon Tyne; 1997. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/10443/531.

Council of Science Editors:

Aslanoglu M. The application of electroanalytical methods to the measurement of metal complex-nucleic acid interactions. [Doctoral Dissertation]. University of Newcastle Upon Tyne; 1997. Available from: http://hdl.handle.net/10443/531

University of Oxford

20. Akkermans, Richard P. Studies in sonoelectrochemistry.

Degree: 1999, University of Oxford

URL: http://ora.ox.ac.uk/objects/uuid:edf97687-877d-487d-813d-61c54f446b43 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301787

► The work described in this thesis employs 'dual activation' methodologies and in particular sonovoltammetry to study a variety of electrochemical systems. First, the effect of… (more)

▼ The work described in this thesis employs 'dual activation' methodologies and in particular sonovoltammetry to study a variety of electrochemical systems. First, the effect of 20 kHz power ultrasound on the electrochemistry of simple redox systems in both water and acetonitrile is explored and characterised for different cell geometries. A simple Nernst diffusion layer model is validated. Second, the use of insonation for efficient pre-concentration of target species in anodic stripping voltammetry (ASV) is reported. 'Sonotrodes', where the electrodes are incorporated into the ultrasonic horn tips are shown to offer particularly high rates of mass transport and additionally cause ablation of mercury from plated platinum electrodes. The key benefits of sonication are shown to be electrode depassivation and extraction plus rapidity and ease of determination, coupled with the lack of any sample pre-treatment for the detection of lead in both wine and petrol by ASV. Lead levels determined by this method and calibrated by use of standard microaddition are in excellent agreement with those obtained 'blind' by atomic absorption spectroscopy performed at independent laboratories. Third, the novel use of ultrasonically formed emulsions is examined for both analytical and synthetic purposes. The possibility of extracting species both out of an organic phase for analysis and into an organic phase for the synthesis of water-insoluble redox products is realised. Fourth, the sonovoltammetric determination of ascorbic acid in both aqueous solution and the fruit drink Ribena®, is compared with results obtained by laser activated electroanalysis, where low level laser illumination of an electrode is employed to maintain a fresh electrode surface. Small amounts of laser-induced thermal convection at the electrode result in steady-state voltammetry. The level of agreement is excellent between the two methods and also agrees very well with independent chemical analysis. Fifth, laser activated voltammetry (LAV) is further explored and a simple mass transport model verified. Damage caused by high power laser ablation is evidenced by atomic force microscopy (AFM). Applications of the technique for depassivation are illustrated by the reduction of toluidine blue dye and oxidation of ferrocyanide in the presence of blood proteins. The technique is further employed under channel flow conditions to elucidate an unambiguous mechanism for aqueous iodide oxidation at platinum electrodes in the absence of the usual build up of bulk iodine (as evidenced by AFM). Finally, the reduction of methylene green dye at platinum electrodes is used to compare and contrast sonovoltammetry and LAV with thermal and microwave dual activation techniques. The build-up of the passivating reduced form of the dye on the electrode surface, again seen by AFM, is removed by sono-emulsion and laser activation but not by microwave heating. However, greater conductivity is observed at higher temperatures and an electron-hopping mechanism is postulated.

Subjects/Keywords: 543; Electrochemistry : Voltammetry

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APA (6^th Edition):

Akkermans, R. P. (1999). Studies in sonoelectrochemistry. (Doctoral Dissertation). University of Oxford. Retrieved from http://ora.ox.ac.uk/objects/uuid:edf97687-877d-487d-813d-61c54f446b43 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301787

Chicago Manual of Style (16^th Edition):

Akkermans, Richard P. “Studies in sonoelectrochemistry.” 1999. Doctoral Dissertation, University of Oxford. Accessed September 21, 2019. http://ora.ox.ac.uk/objects/uuid:edf97687-877d-487d-813d-61c54f446b43 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301787.

MLA Handbook (7^th Edition):

Akkermans, Richard P. “Studies in sonoelectrochemistry.” 1999. Web. 21 Sep 2019.

Vancouver:

Akkermans RP. Studies in sonoelectrochemistry. [Internet] [Doctoral dissertation]. University of Oxford; 1999. [cited 2019 Sep 21]. Available from: http://ora.ox.ac.uk/objects/uuid:edf97687-877d-487d-813d-61c54f446b43 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301787.

Council of Science Editors:

Akkermans RP. Studies in sonoelectrochemistry. [Doctoral Dissertation]. University of Oxford; 1999. Available from: http://ora.ox.ac.uk/objects/uuid:edf97687-877d-487d-813d-61c54f446b43 ; http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301787

Addis Ababa University

21. Belete, Tesfaw. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/467

► The cyclic voltammetric study of cadmium(II) -aspartic acid system at pH 8 was undertaken. Through a series of diagnostic criteria, it was shown that the… (more)

Subjects/Keywords: cyclic voltammetry (CV); CE mechanism, aspartic acid

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APA (6^th Edition):

Belete, T. (2012). Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/467

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):

Belete, Tesfaw. “Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .” 2012. Thesis, Addis Ababa University. Accessed September 21, 2019. http://etd.aau.edu.et/dspace/handle/123456789/467.

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

MLA Handbook (7^th Edition):

Belete, Tesfaw. “Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system .” 2012. Web. 21 Sep 2019.

Vancouver:

Belete T. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2019 Sep 21]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/467.

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

Council of Science Editors:

Belete T. Study of CE mechanism by cyclic voltammetry: Cd(II) + Aspartic acid system . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/467

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

Addis Ababa University

22. Alemayehu, Yifru. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/479

► A glassy carbon electrode (GCE) is modified with PEDOT and its application for differential pulse voltammetry (DPV) detection of diazinon ,DZN ( organophosphate pesticide) is… (more)

Subjects/Keywords: GCE; PEDOT; differential pulse voltammetry; Diazinon

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APA (6^th Edition):

Alemayehu, Y. (2012). Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/479

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):

Alemayehu, Yifru. “Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .” 2012. Thesis, Addis Ababa University. Accessed September 21, 2019. http://etd.aau.edu.et/dspace/handle/123456789/479.

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

MLA Handbook (7^th Edition):

Alemayehu, Yifru. “Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon .” 2012. Web. 21 Sep 2019.

Vancouver:

Alemayehu Y. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2019 Sep 21]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/479.

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

Council of Science Editors:

Alemayehu Y. Poly(3,4 –ethylenedioxythiophene ) (PEDOT) Modified Glassy Carbon Electrode for the Voltammetric Determination of Diazinon . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/479

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

Addis Ababa University

23. Asfaw, Negash. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .

Degree: 2012, Addis Ababa University

URL: http://etd.aau.edu.et/dspace/handle/123456789/503

► Electrochemical oxidation of catechol has been studied in the presence of imidazole as nucleophile in aqueous solution, using cyclic voltammetry. The results indicate the participation… (more)

Subjects/Keywords: catechol and imidazole; cyclic voltammetry; EC mechanism

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APA (6^th Edition):

Asfaw, N. (2012). Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . (Thesis). Addis Ababa University. Retrieved from http://etd.aau.edu.et/dspace/handle/123456789/503

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):

Asfaw, Negash. “Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .” 2012. Thesis, Addis Ababa University. Accessed September 21, 2019. http://etd.aau.edu.et/dspace/handle/123456789/503.

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

MLA Handbook (7^th Edition):

Asfaw, Negash. “Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole .” 2012. Web. 21 Sep 2019.

Vancouver:

Asfaw N. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . [Internet] [Thesis]. Addis Ababa University; 2012. [cited 2019 Sep 21]. Available from: http://etd.aau.edu.et/dspace/handle/123456789/503.

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

Council of Science Editors:

Asfaw N. Study of EC mechanism by cyclic voltammetry: Electrochemical oxidation of catechol in the presence of imidazole . [Thesis]. Addis Ababa University; 2012. Available from: http://etd.aau.edu.et/dspace/handle/123456789/503

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

Portland State University

24. Ho, I-Pin. Instrumentation for Multi-Electrode Voltammetry.

Degree: PhD, Environmental Sciences and Resources, 1990, Portland State University

URL: http://pdxscholar.library.pdx.edu/open_access_etds/1141

► When metal pollutants exist in natural water, their toxicity is dramatically dependent on the chemical species. Numerous sophisticated techniques and instruments have been developed… (more)

Subjects/Keywords: Voltammetry; Environmental Monitoring

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APA (6^th Edition):

Ho, I. (1990). Instrumentation for Multi-Electrode Voltammetry. (Doctoral Dissertation). Portland State University. Retrieved from http://pdxscholar.library.pdx.edu/open_access_etds/1141

Chicago Manual of Style (16^th Edition):

Ho, I-Pin. “Instrumentation for Multi-Electrode Voltammetry.” 1990. Doctoral Dissertation, Portland State University. Accessed September 21, 2019. http://pdxscholar.library.pdx.edu/open_access_etds/1141.

MLA Handbook (7^th Edition):

Ho, I-Pin. “Instrumentation for Multi-Electrode Voltammetry.” 1990. Web. 21 Sep 2019.

Vancouver:

Ho I. Instrumentation for Multi-Electrode Voltammetry. [Internet] [Doctoral dissertation]. Portland State University; 1990. [cited 2019 Sep 21]. Available from: http://pdxscholar.library.pdx.edu/open_access_etds/1141.

Council of Science Editors:

Ho I. Instrumentation for Multi-Electrode Voltammetry. [Doctoral Dissertation]. Portland State University; 1990. Available from: http://pdxscholar.library.pdx.edu/open_access_etds/1141

Georgia Tech

25. Helfrick, John C. Cyclic square wave voltammetry.

Degree: PhD, Chemistry, 1989, Georgia Tech

URL: http://hdl.handle.net/1853/30681

Subjects/Keywords: Voltammetry; Electrochemistry; Chemistry

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APA (6^th Edition):

Helfrick, J. C. (1989). Cyclic square wave voltammetry. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/30681

Chicago Manual of Style (16^th Edition):

Helfrick, John C. “Cyclic square wave voltammetry.” 1989. Doctoral Dissertation, Georgia Tech. Accessed September 21, 2019. http://hdl.handle.net/1853/30681.

MLA Handbook (7^th Edition):

Helfrick, John C. “Cyclic square wave voltammetry.” 1989. Web. 21 Sep 2019.

Vancouver:

Helfrick JC. Cyclic square wave voltammetry. [Internet] [Doctoral dissertation]. Georgia Tech; 1989. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/1853/30681.

Council of Science Editors:

Helfrick JC. Cyclic square wave voltammetry. [Doctoral Dissertation]. Georgia Tech; 1989. Available from: http://hdl.handle.net/1853/30681

Dublin City University

26. Lynch, Brian. A voltammetric study of some heterocyclic mercaptans.

Degree: School of Chemical Sciences, 1988, Dublin City University

URL: http://doras.dcu.ie/18969/

► The four mercaptans studied were 2-mercaptopyridine (2MP), 2-mercaptopyridine-N-oxide (2MP-0), 2-mercaptopyrimidine (2MPr), and 2-mercapto-4-methylpyrimidine.HCl (2MmPr). The pKg values of each compound were determined by both an… (more)

▼ The four mercaptans studied were 2-mercaptopyridine (2MP), 2-mercaptopyridine-N-oxide (2MP-0), 2-mercaptopyrimidine (2MPr), and 2-mercapto-4-methylpyrimidine.HCl (2MmPr). The pKg values of each compound were determined by both an ultraviolet spectroscopic method and a polarographic method. The pKa values calculated by each technique were in good agreement. The reversibilty of each compound's electrode reaction was assessed from their sampled direct current (DC) polarograms, and it was found that each reaction was quasireversible in nature. The electrocapillary (EC) curves of 2MP and 2MP-0 indicated that the product of their corresponding electrode reactions (a mercury thiolate salt) was adsorbed at the electrode surface. In cyclic voltammetric (CV) analysis, the oxidation peak current was controlled by diffusion of the mercaptan to the electrode. However, as the concentration was increased, an adsorption controlled oxidation peak was also present in the recorded CV's. The CV's displayed the characteristics of weak thiolate adsorption at the electrode surface, and also the film formation was dependent on the time the potential was held positive of the reaction potential. Calibration curves from differential pulse (DP) polarograms and differential pulse cathodic stripping voltammograms (DPCSV) were constructed to find the linear dependence of peak current with concentration. The limit of detection for each mercaptan using DPP was 1x 10-5M, and lxlO”'M using DPCSV. Differentiation of the mercaptans in mixtures was also investigated. The peak current due to 2MP, at concentrations higher than 1x10 M, was greater than that due to equimolar concentrations of the other three mercaptans. This seemed to indicate that the 2MP electrode reaction product was adsorbed in a more compact film at the electrode surface, than the products of the other three mercaptans. The different possible electrode mechanisms and their correlation with their current potential equations were examined. A voltammetric procedure was then developed for the determination of 2-chloropyridine-N-oxide (2PC1-0) and the sodium salt of 2MP-0 in an industrial process stream. Advisors/Committee Members: Smyth, Malcolm R..

Subjects/Keywords: Chemistry; Voltammetry; Mercaptans

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APA (6^th Edition):

Lynch, B. (1988). A voltammetric study of some heterocyclic mercaptans. (Thesis). Dublin City University. Retrieved from http://doras.dcu.ie/18969/

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):

Lynch, Brian. “A voltammetric study of some heterocyclic mercaptans.” 1988. Thesis, Dublin City University. Accessed September 21, 2019. http://doras.dcu.ie/18969/.

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

MLA Handbook (7^th Edition):

Lynch, Brian. “A voltammetric study of some heterocyclic mercaptans.” 1988. Web. 21 Sep 2019.

Vancouver:

Lynch B. A voltammetric study of some heterocyclic mercaptans. [Internet] [Thesis]. Dublin City University; 1988. [cited 2019 Sep 21]. Available from: http://doras.dcu.ie/18969/.

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

Council of Science Editors:

Lynch B. A voltammetric study of some heterocyclic mercaptans. [Thesis]. Dublin City University; 1988. Available from: http://doras.dcu.ie/18969/

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

27. Tatin, Arnaud. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.

Degree: Docteur es, Chimie. Électrochimie moléculaire et biologique, 2016, Sorbonne Paris Cité

URL: http://www.theses.fr/2016USPCC164

►

L'énergie électrique (de préférence d’origine renouvelable) peut être stockée dans des liaisons chimiques grâce à un électrolyseur approprié. Les réactions typiques comprennent la production d'hydrogène,… (more)

▼

L'énergie électrique (de préférence d’origine renouvelable) peut être stockée dans des liaisons chimiques grâce à un électrolyseur approprié. Les réactions typiques comprennent la production d'hydrogène, la production d'hydrocarbures et la synthèse d'ammoniac. Ces électrocarburants permettent de faciliter l'intégration de sources d'énergie renouvelables dans le mix de production électrique. Ils sont compatibles avec l'infrastructure industrielle actuelle et la chaîne d'approvisionnement et peuvent être stockés facilement. En outre, ce procédé est à la fois un moyen de stocker l'électricité dans des liaisons chimiques (vecteurs énergétiques) et une technique de synthèse de composés chimiques à partir de matières premières comme le CO2 plutôt que de ressources fossiles.La thèse s’intéresse au développement de nouveaux catalyseurs moléculaires pour la conversion sélective du CO2 en CO en utilisant uniquement des matériaux abondants sur Terre, comme les porphyrines de Fer. Tout d'abord, les tentatives pour obtenir de nouveaux catalyseurs avec divers substituants sont détaillées. Une fois qu'un catalyseur hydrosoluble actif est identifié, une évaluation des performances est réalisée en utilisant des techniques électrochimiques telles que la voltammétrie cyclique

Electrical energy (preferably issued from renewable sources) can be stored in chemical bonds thanks to an appropriate electrolyzer. Typical reactions include hydrogen generation, the production of hydrocarbons and oxygenates, and ammonia synthesis. Such electrofuels supplement the integration of renewable energy sources in the electrical production mix; they are compatible with the current industrial infrastructure and supply chain, while they can be stored easily. Besides, they may be used either as a means to store the electricity in the chemical bonds of high-energy-content molecules or as various feedstocks to manufacture high value compounds.The thesis focused on the development of new molecular catalysts for the selective CO2-to-CO conversion in water using only earth-abundant materials, namely iron-based porphyrin derivatives. First, successful and unsuccessful attempts to derive new catalysts with various substituents are reviewed. Once an active water-soluble catalyst is identified, a performance assessment is completed using electrochemical techniques such as cyclic voltammetry investigations.Then, the immobilization of said catalysts onto the electrode surface is discussed. Once a robust integration in the catalytic film is secured, the coupling with a heterogeneous water-oxidation catalyst can be considered. The subsequent assembly of a whole electrolysis cell is reported, where a cobalt-based film was picked for the anode. Finally, economic perspectives provide a clear, rational basis for future optimization of the device

Advisors/Committee Members: Robert, Marc (thesis director).

Subjects/Keywords: Électrocarburants; Voltammétrie cyclique; Electrofuels; Cyclic voltammetry

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APA (6^th Edition):

Tatin, A. (2016). Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. (Doctoral Dissertation). Sorbonne Paris Cité. Retrieved from http://www.theses.fr/2016USPCC164

Chicago Manual of Style (16^th Edition):

Tatin, Arnaud. “Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.” 2016. Doctoral Dissertation, Sorbonne Paris Cité. Accessed September 21, 2019. http://www.theses.fr/2016USPCC164.

MLA Handbook (7^th Edition):

Tatin, Arnaud. “Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète.” 2016. Web. 21 Sep 2019.

Vancouver:

Tatin A. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. [Internet] [Doctoral dissertation]. Sorbonne Paris Cité; 2016. [cited 2019 Sep 21]. Available from: http://www.theses.fr/2016USPCC164.

Council of Science Editors:

Tatin A. Electrochemical CO2 splitting into CO and O2 in neutral water using earth-abundant materials : from molecular catalysts to a whole electrolyzer : Production électrochimique de CO et O2 par électrolyse du CO2 dans l’eau à l’aide de métaux abondants : de la conception de catalyseurs moléculaires sélectifs, stables et efficaces à l'assemblage d'une cellule complète. [Doctoral Dissertation]. Sorbonne Paris Cité; 2016. Available from: http://www.theses.fr/2016USPCC164

Penn State University

28. Makos, Monique Adrianne. In Vivo Electrochemical Measurements in Drosophila melanogaster.

Degree: PhD, Chemistry, 2010, Penn State University

URL: https://etda.libraries.psu.edu/catalog/10505

► Carbon-fiber microelectrodes coupled with electrochemical detection have been extensively used for the analysis of biogenic amines. In order to determine the functional role of amines,… (more)

▼ Carbon-fiber microelectrodes coupled with electrochemical detection have been extensively used for the analysis of biogenic amines. In order to determine the functional role of amines, in vivo studies have primarily used rats and mice as model organisms. This thesis concerns the development of an electrochemical detection method for in vivo measurements of dopamine in the nanoliter-sized adult Drosophila melanogaster central nervous system (CNS). A cylindrical carbon-fiber microelectrode was placed in a fly brain region containing a dense cluster of dopaminergic neurons while a micropipet injector was used to exogenously apply dopamine to the area. Changes in dopamine concentration in the fly were monitored in vivo with background-subtracted fast-scan cyclic voltammetry (FSCV). Distinct differences were found for the clearance of exogenously applied dopamine by the dopamine transporter in the brain of a wild-type fly vs. a mutant fly lacking dopamine transporter function. The measured current response due to oxidation of dopamine at the electrode surface increased significantly for wild-type flies following treatment with cocaine which is a known dopamine uptake blocker. The current remained unchanged for mutant flies under the same conditions. These results demonstrate the validity of using this novel analytical technique to monitor dopamine uptake in Drosophila. The in vivo method described in this thesis has been used to study mechanisms that underlie drug addiction from a physiological perspective. In addition to being a valuable tool for the analytical chemistry field, this work is of significant interest to the neuroscience community. Dopamine neurotransmission is believed to play a critical role in addiction reinforcing mechanisms of drugs of abuse. Little is known about the in vivo nature of drug interactions with invertebrate transporters, mainly because of the lack of techniques available for quantifying neurochemicals in such small native environments. Hence, the effects of several psychostimulants on dopamine clearance in the Drosophila melanogaster CNS have been investigated with in vivo electrochemical detection. FSCV was used to quantify changes in dopamine concentration in the fly brain when cells were exposed to cocaine, amphetamine, methamphetamine, or methylphenidate. Clearance of exogenously applied dopamine was significantly decreased in the wild-type fly following all drug treatments. In contrast, dopamine uptake remained unchanged when identical treatments were employed in mutant flies lacking functional dopamine transporters. Although the understanding of the complex actions of cocaine in the brain has improved, an effective drug treatment for cocaine addiction has yet to be found. During the last decade, methylphenidate has been investigated as a potential medication for cocaine addiction treatment. Methylphenidate binds the dopamine transporter and increases extracellular dopamine levels in the CNS similar to cocaine but is thought to elicit fewer addictive and reinforcing effects. Several…

Subjects/Keywords: electrochemistry; microelectrode; cyclic voltammetry; pH electrode; Drosophila

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

APA (6^th Edition):

Makos, M. A. (2010). In Vivo Electrochemical Measurements in Drosophila melanogaster. (Doctoral Dissertation). Penn State University. Retrieved from https://etda.libraries.psu.edu/catalog/10505

Chicago Manual of Style (16^th Edition):

Makos, Monique Adrianne. “In Vivo Electrochemical Measurements in Drosophila melanogaster.” 2010. Doctoral Dissertation, Penn State University. Accessed September 21, 2019. https://etda.libraries.psu.edu/catalog/10505.

MLA Handbook (7^th Edition):

Makos, Monique Adrianne. “In Vivo Electrochemical Measurements in Drosophila melanogaster.” 2010. Web. 21 Sep 2019.

Vancouver:

Makos MA. In Vivo Electrochemical Measurements in Drosophila melanogaster. [Internet] [Doctoral dissertation]. Penn State University; 2010. [cited 2019 Sep 21]. Available from: https://etda.libraries.psu.edu/catalog/10505.

Council of Science Editors:

Makos MA. In Vivo Electrochemical Measurements in Drosophila melanogaster. [Doctoral Dissertation]. Penn State University; 2010. Available from: https://etda.libraries.psu.edu/catalog/10505

University of Illinois – Chicago

29. Brown, Holden D. An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior.

Degree: 2012, University of Illinois – Chicago

URL: http://hdl.handle.net/10027/8914

► Learning about stimuli that signal the attainment of food and other rewards is critical for survival. Evidence suggests that the midbrain dopamine system plays a… (more)

▼ Learning about stimuli that signal the attainment of food and other rewards is critical for survival. Evidence suggests that the midbrain dopamine system plays a critical role in reward learning and goal-directed behavior. Recordings of midbrain dopamine neurons in awake and behaving subjects suggest that phasic dopamine signals are uniformly broadcast throughout terminal regions in response to unpredicted reward or environmental stimuli that predict reward. However, studies sampling dopamine release from the nucleus accumbens during unpredicted reward or predictive stimuli show that phasic dopamine signaling may occur in a more regionally-selective manner. However, there has not been a systematic examination of whether phasic dopamine release from dorsal and ventral striatal subregions occurs uniformly throughout the striatum or in a regional-selective manner. To address this, I measured phasic dopamine release, using fast-scan cyclic voltammetry, in four striatal regions (nucleus accumbens shell and core, dorsomedial and dorsolateral striatum) during electrical stimulation of the ventral midbrain, unpredicted food reward or during a discriminative stimulus paradigm. The results from all experiments indicate that dopamine signaling occurs in a regional-specific manner. Electrical stimulation of the SNpc/VTA evoked dopamine release in all striatal regions but the rate of reuptake was fastest in the dorsolateral striatum and slowest in the nucleus accumbens shell. Unpredicted food reward only evoked phasic dopamine release in the nucleus accumbens core. In the discriminative stimulus task, a cue predictive of reward evoked a phasic dopamine signal in the nucleus accumbens core and dorsomedial striatum. Following performance of the discriminative stimulus task, unpredicted food reward increased phasic dopamine release in both the nucleus accumbens core and the dorsomedial striatum. No condition evoked phasic dopamine release in the nucleus accumbens shell or dorsolateral striatum. These findings provide the first demonstration that phasic stimulation, reward stimuli and reward predictive cues evoke highly compartmentalized changes in phasic dopamine release across multiple striatal regions. This incongruence with electrophysiological recordings may be due to several factors including prior task experience, selection criterion for dopamine neuronal recording, or presynaptic modification of dopamine release. Together, these results suggest distinct roles of phasic dopamine release across striatal subregions. Advisors/Committee Members: Roitman, Mitchell F (advisor), Ragozzino, Michael E (advisor).

Subjects/Keywords: dopamine; striatum; nucleus accumbens; reward; voltammetry

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

APA (6^th Edition):

Brown, H. D. (2012). An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior. (Thesis). University of Illinois – Chicago. Retrieved from http://hdl.handle.net/10027/8914

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):

Brown, Holden D. “An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior.” 2012. Thesis, University of Illinois – Chicago. Accessed September 21, 2019. http://hdl.handle.net/10027/8914.

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

MLA Handbook (7^th Edition):

Brown, Holden D. “An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior.” 2012. Web. 21 Sep 2019.

Vancouver:

Brown HD. An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior. [Internet] [Thesis]. University of Illinois – Chicago; 2012. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/10027/8914.

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

Council of Science Editors:

Brown HD. An examination of phasic dopamine release in distinct striatal subregions during reward-directed behavior. [Thesis]. University of Illinois – Chicago; 2012. Available from: http://hdl.handle.net/10027/8914

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

30. Fomo, Gertrude. Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin .

Degree: 2014, University of the Western Cape

URL: http://hdl.handle.net/11394/4340

► Tetrodotoxin (TTX) is a nonpeptidic neurotoxin with a high rate of food poisoning mortality (60%) that has been associated with the consumption of diets from… (more)

▼ Tetrodotoxin (TTX) is a nonpeptidic neurotoxin with a high rate of food poisoning mortality (60%) that has been associated with the consumption of diets from puffer fish and mud snails harbouring TTX-producing bacteria. As this neurotoxin has no known antidote and could not be mitigated by cooking, the only way for safety appears to be the detection of TTX-contaminated fishes at the points of harvest and control. The overall aim of this study was to develop amperometric and impedimetric sensors for TTX based on ionophores and aptamer immobilised on the modified conducting electroactive polyaniline (PANI)/electrode. The undoped polyaniline and poly(4-styrenesulfonic acid) (PSSA) doped electroactive polyanilines were prepared in perchloric acid/acetonitrile and phosphoric acid respectively by electrochemical oxidative polymerisation. Two types of electropolymerisation were applied to prepare the neutral and p-doped PANI−PSSA films composites. The dynamic electroinactivity of TTX was studied which revealed that TTX is not electrochemically active on bare Au, GC, Pt, PG, Ni, Ti and BDD (Boron dopeddiamond) electrodes in acetate buffer pH 4.8. Using ion transfer voltammetry and UV-Vis analysis, the complexation of TTX with two neutral ionophores (sodium ionophore X (NaX) and dibenzo-18-crown6 (B18C6)) was investigated. The cyclic voltammograms (CVs) recorded from ion transfer voltammetry presented no redox peak and no increasing/decreasing current was observed which indicates that no TTX ions transfer from the liquid to the organic phase. In addition, the absorption spectra of the mixture of TTX/NaX and TTX/B18C6 presented the same absorption bands recorded for NaX and B18C6 respectively. Three absorptions bands at 250.4, 278.3, and 370.6 nm for NaX and two at 222.03 and 274.10 nm for B18C6 were observed before and after mixing TTX with NaX and TTX with B18C6 separately. No chemical reaction occurred between the TTX and both ionophores, therefore, sodium ionophore X and dibenzo-18-crown-6 did not form a complex with TTX. Thus, TTX ion sensor cannot be developed based on these two neutral compounds. The electrodynamics of the PANI and PANI−PSSA films electropolymerised on the bare precious metal electrodes were also investigated through various electrochemical techniques. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) studies in sodium phosphate (SPB) and acetate (OAc) buffer revealed that both neutral and p-doped films synthesized were thin (thickness L < 5 nm in acetate buffer and L < 10 nm in sodium phosphate buffer) film polymers. Advisors/Committee Members: Iwuoha, Emmanuel (advisor), Waryo, Tesfaye (advisor).

Subjects/Keywords: Aptasensor; Tetrodotoxin-aptamer; Tetrodotoxin; Ion transfer voltammetry

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

APA (6^th Edition):

Fomo, G. (2014). Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin . (Thesis). University of the Western Cape. Retrieved from http://hdl.handle.net/11394/4340

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):

Fomo, Gertrude. “Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin .” 2014. Thesis, University of the Western Cape. Accessed September 21, 2019. http://hdl.handle.net/11394/4340.

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

MLA Handbook (7^th Edition):

Fomo, Gertrude. “Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin .” 2014. Web. 21 Sep 2019.

Vancouver:

Fomo G. Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin . [Internet] [Thesis]. University of the Western Cape; 2014. [cited 2019 Sep 21]. Available from: http://hdl.handle.net/11394/4340.

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

Council of Science Editors:

Fomo G. Ionophoric and aptameric recognition-modulated electroactive polyaniline films for the determination of tetrodotoxin . [Thesis]. University of the Western Cape; 2014. Available from: http://hdl.handle.net/11394/4340

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

Open Access Theses and Dissertations