INDIRECT DETERMINATION OF STRYCHNINE BY ADSORPTIVE STRIPPING VOLTAMMETRY

被引：6
|
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：
ANALYTICAL LETTERS | 1995年 / 28卷 / 12期
基金：
中国国家自然科学基金;
关键词：
STRYCHNINE; DINITROSTRYCHNINE; ADSORPTIVE STRIPPING VOLTAMMETRY;
D O I：
10.1080/00032719508000039
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
After reacted with nitric acid, strychnine can be transformed into dinitrostrychnine, and then measured by adsorptive stripping voltammetry. This method is based on the adsorptive accumulation of dinitrostrychnine at the hanging mercury drop electrode, followed by cathodic linear sweep voltammetric determination. The cathodic peak potential is about -0.28 V (vs. Saturated Ag/AgCl). The detection limit of 4.0x10(-9) M is obtained under optimized condition. The electrochemical behaviour of dinitrostrychnine and the mechanism of electrode reaction were discussed.
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收藏
页码：2203 / 2217
页数：15
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