Electrochemical determination of p-cresol concentration using zeolite-modified electrodes

被引：11

作者：

Berge-Lefranc, David ^{[1
]}

Eyraud, Marielle ^{[1
]}

Schaef, Oliver ^{[1
]}

机构：

[1] Univ Aix Marseille 1, CNRS, UMR 6264, Lab Chim Provence, F-13397 Marseille 20, France

来源：

COMPTES RENDUS CHIMIE | 2008年 / 11卷 / 09期

关键词：

zeolite; uremic toxin; biosensor; ZME; cyclovoltammetric;

D O I：

10.1016/j.crci.2008.05.001

中图分类号：

O6 [化学];

学科分类号：

0703 [化学];

摘要：

Carbon paste electrodes modified with different zeolites (MFI and FAU) were studied in order to evidence the electro-oxidation of p-cresol. Cyclovoltammetric experiments were applied by direct measurement in p-cresol-containing aqueous solution, or during release in solution without p-cresol after impregnation. In both cases, the electro-oxidation signal of p-cresol led to two oxidation peaks. Different concentrations of p-cresol were studied. Influences of charge compensating cations, electrode impregnation time and zeolite type were investigated. It was shown that electrochemical measurements could be used as a detection method for p-cresol in aqueous solution with a high sensitivity.

引用

页码：1063 / 1073

页数：11

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