摘要
根据Cu2+对高锰酸钾氧化二安替比林对乙氧基苯基甲烷(DApEM)显色的干扰褪色作用,建立了一个测铜的新方法.其检出限为2×10-6g/L,铜离子的含量在10-80μg/L内与1g(A0/A)成良好的线性关系,体系稳定性和选择性良好.用于铅样中痕量铜的测定,结果满意.
According to decoloring reaction of Cu2+with Mn(Vll)-DAM Color system, anew method of detedrinahon of Cu2+ is founded. In the range of 10-80 μg/L of Cub2+, agood linear relationship exist between the ConcentraCtion of Cu2+ and ig(N/A). ac methodhad been applied to the determination of Cu2+ in lead Samples and the results are satisfactory.
出处
《云南民族学院学报(自然科学版)》
1999年第2期20-22,共3页
Journal of Yunnan University of The Nationalities(Natural Sciences Edition)
基金
云南省教委自然科学基金
关键词
氧化
铜
DApEM
催化光度法
高锰酸钾
测定
Diantipyryl - (p -ethoxy) -phenyl methane, Copper, Decoloringspectro photometry