VOLTAMMETRIC DETERMINATION OF 4-CHLORO-3-METHYLPHENOL AT A GLASSY-CARBON ELECTRODE

被引：5

作者：

GUIJARRO, EC ^{[1
]}

YANEZSEDENO, P ^{[1
]}

CARRAZON, JMP ^{[1
]}

DIEZ, LMP ^{[1
]}

机构：

[1] UNIV COMPLUTENSE MADRID,FAC CHEM,DEPT ANALYT CHEM,E-28040 MADRID,SPAIN

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1991年 / 339卷 / 03期

关键词：

D O I：

10.1007/BF00324409

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An electroanalytical study of the 4-chloro-3-methylphenol oxidation process at a glassy carbon electrode in aqueous solution has been carried out using different voltammetric techniques. The results obtained by differential pulse voltammetry allowed the development of a method for the determination of this antiseptic in the ranges 8.0 x 10-7 - 10.0 x 10-7, 1.0 x 10-6 - 10.0 x 10-6 and 1.0 x 10-5 - 7.0 x 10-5 mol 1-1, using delta-E = 50 mV. The coefficient of variation is 2.3% for a concentration of 5.0 x 10-6 mol 1-1, with a limit of detection of 2.0 x 10-7 mol 1-1. Good results were obtained by applying the proposed differential pulse voltammetric method to the determination of 4-chloro-3-methylphenol in pharmaceutical and cosmetic samples initially containing or spiked with this compound.

引用

页码：193 / 196

页数：4

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