Reaction between l
详细信息 查看全文
- 作者：Jason J. Horn ; Andrew Watson ; Mark Lewis ; Tom McCreedy ; Jay D. Wadhawan
- 关键词：Droplet-modified electrodes ; Thiol detection ; Liquid/liquid electrochemistry ; Three phase junction
- 刊名：Electrochemistry Communications
- 出版年：2008
- 出版时间：September 2008
- 年：2008
- 卷：10
- 期：9
- 页码：1384-1387
- 全文大小：205 K
文摘
The electrochemical oxidation of 10-methylphenothiazine (PMe) dissolved in 1,2-trans-dibromocyclohexane oil droplets immobilised on a basal plane pyrolytic graphite (BPPG) electrode and bathed by an aqueous electrolyte is a one-electron quasi-reversible process which occurs with the expulsion of the electro-generated cation radical from the oil phase. In the presence of l-cysteine in the aqueous phase, the electro-released cation mediates the redox catalytic oxidation of the thiol. The peak catalytic current is observed to increase linearly with increasing cysteine concentration over the range analysed (10–100 mM).