INDIRECT MEASUREMENT OF BRUCINE BY ADSORPTIVE STRIPPING VOLTAMMETRY AT MERCURY-ELECTRODE

被引：14

作者：

LI, MX ^{[1
]}

HU, NF ^{[1
]}

LIN, SC ^{[1
]}

机构：

[1] BEIJING NORMAL UNIV,DEPT CHEM,BEIJING 100875,PEOPLES R CHINA

来源：

TALANTA | 1995年 / 42卷 / 10期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0039-9140(95)01563-Q

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

After reaction with nitric acid, brucine can be transformed into cacotheline, and then measured indirectly by adsorptive stripping voltammetry. This method is based on the adsorptive accumulation of cacotheline at a hanging mercury drop electrode, followed by cathodic linear sweep voltammetry. The cathodic peak potential is about -0.35 V (vs. saturated Ag/AgCl). The detection limit of 2.0 x 10(-9) M is obtained under optimized conditions. The electrochemical behaviour of cacotheline and the mechanism of the electrode reactions are discussed.

引用

页码：1389 / 1394

页数：6

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