Electrocatalytic oxidation of hydrazines at a 4-pyridyl hydroquinone self-assembled platinum electrode and its application to amperometric detection in capillary electrophoresis

被引：37

作者：

Niu, L ^{[1
]}

You, TY ^{[1
]}

Gui, JY ^{[1
]}

Wang, EK ^{[1
]}

Dong, SJ ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Electroanalyt Chem Lab, Changchun 130022, Peoples R China

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1998年 / 448卷 / 01期

关键词：

electrocatalytic oxidation; hydrazines; self-assembled monolayer electrode; amperometric detection;

D O I：

10.1016/S0022-0728(98)00028-X

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

4-Pyridyl hydroquinone on a platinum electrode adsorbs through the pyridine nitrogen forming stable self-assembled layers. The electrocatalytical oxidation of hydrazines was performed by the modified electrode. The overpotential of hydrazines was decreased markedly at the self-assembled monolayer (SAM) electrode. The mechanism of hydrazine oxidation was also investigated. Amperometric detection of hydrazine under zero potential (vs Ag\AgCI\sat. KCl) was exhibited by the SAM electrode used as an electrochemical detector in a flow system. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：79 / 86

页数：8

共 27 条

[1] SURFACE MODIFIERS FOR THE PROMOTION OF DIRECT ELECTROCHEMISTRY OF CYTOCHROME-C [J].