Preconcentration and voltammetry of mercury on a functionalized sol-gel thin film modified glassy carbon electrode

被引：29

作者：

Guo, YZ ^{[1
]}

Guadalupe, AR ^{[1
]}

机构：

[1] Univ Puerto Rico, Dept Chem, San Juan, PR 00931 USA

来源：

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS | 1999年 / 19卷 / 1-2期

关键词：

chemically modified electrodes; sensors; sol-gel films; mercury; electroanalysis;

D O I：

10.1016/S0731-7085(98)00133-2

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A functionalized sol-gel thin film modified glassy carbon electrode has been prepared for the determination of mercury. The tetrasulfide in the sol-gel matrix has a high affinity for mercury species. The chemically integrated functional groups in the sol-gel precursor ensure a high chemical and mechanical stability of the modified electrodes, and therefore a stable and reproducible analytical performance. By medium exchange anodic stripping voltammetry, this modified electrode allows reliable, low cost and interference-free determination of mercury. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：175 / 181

页数：7

共 29 条

[1] CHEMICALLY MODIFIED ELECTRODE FOR THE SIMULTANEOUS DETERMINATION OF TRACE-METALS AND SPECIATION ANALYSIS [J].