The electrochemical behavior of L-cysteine, 3-mercaptopropionic acid, dimercaptopropanesulfonic acid and dimercaptosuccinic acid, was examined at a mercury film electrode, gold electrode and platinum electrode. The effect of scan rate, pH and concentration were determined by cyclic voltammetry. The comparison of the cyclic voltammograms, established a great similarity among the monomercapto compounds at different molecular weight and structure and among the dimercapto compounds that were studied. Differences between the behavior of dimercapto and monomercapto compounds were also established. The cyclic voltammetry of arsenic is affected by the presence of cysteine, and the formation of an arsenic-cysteine complex is established by the shift of the oxidation potential of elemental arsenic at a gold electrode.
| Identifer | oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/278356 |
| Date | January 1993 |
| Creators | Rodriguez-Ibarra, Veronica, 1963- |
| Contributors | Fernando, Quintus |
| Publisher | The University of Arizona. |
| Source Sets | University of Arizona |
| Language | en_US |
| Detected Language | English |
| Type | text, Thesis-Reproduction (electronic) |
| Rights | Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author. |
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