The electrooxidation of sulfur-containing compounds at boron-doped diamond electrode

被引：67

作者：

Chailapakul, O ^{[1
]}

Aksharanandana, P

Frelink, T

Einaga, Y

Fujishima, A

机构：

[1] Chulalongkorn Univ, Fac Sci, Dept Chem, Bangkok 10330, Thailand

[2] Eco Chemie BV, NL-3526 KM Utrecht, Netherlands

[3] Univ Tokyo, Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2001年 / 80卷 / 03期

关键词：

diamond electrodes; electrochemistry; homocysteine; glutathione; 2-mercapto ethanesulfonic acid; cephalexin;

D O I：

10.1016/S0925-4005(01)00912-1

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The electrooxidation of homocysteine, glutathione (GSH), 2-mercapto ethanesulfonic acid and cephalexin at boron-doped diamond (BDD) electrodes and glassy carbon (GC) electrodes was investigated by cyclic voltammetry. The oxidation of these sulfur-containing compounds exhibited well-defined irreversible responses. This preliminary study has shown that BDD has better sensitivity than GC. Concentration dependence has been studied and indicated the promise of using BDD electrodes for quantitative determination. All of the compounds displayed recognizable oxidation peaks at BDD electrodes at millimolar concentration levels. Scan rate dependence of GSH has been examined. It was shown that there was no adsorption on the surface of the BDD electrode for the low concentration. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：193 / 201

页数：9

共 26 条

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