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
收藏
页码：1757 / 1767
页数：11
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