Catalytic kinetic determination of trace amounts of copper with polarographic detection

被引：0

作者：

Wang, SH ^{[1
]}

Du, LY ^{[1
]}

Zhang, AM ^{[1
]}

Liu, DJ ^{[1
]}

机构：

[1] Liaocheng Teachers Coll, Dept Chem, Liaocheng 252059, Peoples R China

来源：

ANALYTICAL LETTERS | 1998年 / 31卷 / 10期

关键词：

copper; catalytic; polarographic method;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This method is based on the catalytic effect of copper(II) on the redox reaction between acid chrome dark blue and ascorbic acid in acetic acid-sodium acetate buffer solution and 1,10-phenanthroline as an activator. Acid chrome dark blue exhibits a sensitive polarographic wave at -0.375V Vs.SCE and change of acid chrome dark blue concentration is traced by a polarographic detection technique. The detection limit and the linear range of copper(II) are 2.34ng/ml and 5 to 50ng/ml respectively. This new catalytic method has been applied to the determination of copper in human hair,with satisfactory results.

引用

页码：1757 / 1767

页数：11

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