摘要
合成了新试剂二安替比林-（邻-乙氧基）苯基甲烷（DAoEM）；根据Cu2+对H3PO4-Mn（Ⅲ）－Cr（Ⅵ）DAoEM显色体系的干扰褪色作用，建立了一个测定微量铜的新方法。其检出限为4×10-6g/L，铜离子含量在20—160μg/L范围内与lg（A0／A）成良好线性关系，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。
Diantipyryl- (o-ethoxy)-phenylmethane(DAoEM )has been synthesired and identified. Accordingto decolouring reaction of Cu2+ by color system of H3PO4-Mn (Ⅱ)-Cr (Ⅵ)-DAoEM,a method of determination of Cu2+ is found. The detection liInit is 4×10-6g/L, in the range of 20-160μg/L ofCu2+,a good linear relationship exist between the concentration of Cu2+and lg (A0/A ). The sydtem'sstability and selectivity is good. This method had been applied to the determination of Cu2+in lead sample and the resut is satisfactory.
出处
《光谱实验室》
CAS
CSCD
1997年第4期91-93,共3页
Chinese Journal of Spectroscopy Laboratory
关键词
二安替比林
苯基甲烷
褪色光度法
铜
Diantipyryl-(-o-ethoxy )-phenylmethane (DAoEM ), Decolouring Spectrophotometry, Copper
