ELECTROCHEMICAL OXIDATION AND ANALYTICAL APPLICATIONS OF ESTROGENS AT MODIFIED CARBON-PASTE ELECTRODE

被引：12

作者：

HU, SS ^{[1
]}

GUO, MD ^{[1
]}

HU, GZ ^{[1
]}

JIANG, M ^{[1
]}

机构：

[1] SHANXI NORMAL UNIV,DEPT CHEM,LINFENG 041004,PEOPLES R CHINA

来源：

ANALYTICAL LETTERS | 1995年 / 28卷 / 11期

关键词：

ESTROGEN; MODIFIED CARBON PASTE ELECTRODE; ELECTROCHEMICAL OXIDATION;

D O I：

10.1080/00032719508000019

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A direct electroanalytical method for the determination of estrogens is proposed, and a carbon paste electrode modified with oleic acid for the electrochemical oxidation of estrogens is described. A sensitive and reproducible peak is obtained by comparison with voltammetric responses at different modified electrodes (CPA, CPOSa and CPOPa). The experimental parameters and electrochemical properties of estrogens at the modified electrodes are discussed. Its oxidation current depends on the electrolyte species and the alcohol content. The carbon paste electrodes modified with oleic acid have been developed for the assay of estriol in pharmaceutical samples. A detection limit 4 X 10(-7) mol/l of estradiol is estimated under selected conditions by using the 1.5th order differential stripping analysis.

引用

页码：1993 / 2003

页数：11

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