SIMULTANEOUS DETERMINATION OF COPPER AND ZINC IN THE HAIR OF CHILDREN BY PH GRADIENT CONSTRUCTION IN A FLOW-INJECTION SYSTEM

被引:20
作者
LIU, RM
LIU, DJ
SUN, AL
LIU, GH
机构
关键词
SIMULTANEOUS DETERMINATION; COPPER AND ZINC; HAIR; FLOW INJECTION; PH GRADIENT CONSTRUCTION;
D O I
10.1039/an9952000569
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A flow-injection method is described for the simultaneous determination of copper and zinc with a single detector using the pH gradient technique. Zincon is used as the colour reagent for the spectrophotometric determination. The linear range for the determination of zinc is 0.4-12 mu g ml(-1) and for copper is 0.1-3.0 mu g ml(-1). About 20-30 samples can be determined in one hour, The proposed method has been applied to the determination of zinc and copper in chiIdrens' hair.
引用
收藏
页码:569 / 572
页数:4
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