Electrochemical behavior of N-acetyl-L-cysteine at mercury film electrode

被引：0

作者：

Yan, JL ^{[1
]}

Sun, RD ^{[1
]}

Sun, WD ^{[1
]}

机构：

[1] Yancheng Inst Technol, Dept Chem Engn, Yancheng 224003, Peoples R China

来源：

CHINESE JOURNAL OF ANALYTICAL CHEMISTRY | 2003年 / 31卷 / 04期

关键词：

N-acetyl-L-cysteine; electrochemical behavior; voltammetry;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In the medium of 0.1 mol/L HAc-NaAc buffer solution (pH = 4.5), a sensitive square wave voltammetric peak of N-acetyl-L-cysteine (NAC) at mercury film electrode at about -0.25 V(vs . Ag/AgCl) was observed. The electrochemical behavior and. reaction mechanism of this system have been studied by linear sweep, cyclic voltammetry and pulse polarography. The experiment results indicated that the number of electron involved in the electro-reduction was 1, and the electrode transfer coefficient was 0.82. There was a good linear relationship between the peak current and the concentration of NAC in the range of 1.2 x 10(-8) similar to 5.0 x 10(-6) mol/L. The detection limit of the method was 5. 0 x 10(-9) mol/L. The concentration of NAC in Fluimucil has been determined with satisfactory results by this method.

引用

页码：448 / 450

页数：3