Electrochemical Study of Thiols and Disulfides Using Modified Electrodes
- 1 January 1986
- journal article
- analytical biochemistry-and-clinical-analysis
- Published by Taylor & Francis in Analytical Letters
- Vol. 19 (1-2) , 193-203
- https://doi.org/10.1080/00032718608066251
Abstract
The electrochemical oxidative behavior of cysteine and several disulfides, such as cystine, lipoic acid and disulfiram, have been investigated using a carbon past (EPC) and a modified carbon paste (EPCM) electrode. The study has permitted the differentiation of the oxidative behavior of the thiol and of the disulfides. Modification of the carbon paste, by incorporating cobalt(II) phtalocyanine, offers interesting properties due to the electrocatalytic capability of the electrode. Using these types of electrodes the different molecules have been quantitatively determined at concentration as low as 2.10−7 M.Keywords
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