铜Ⅰ—硫氰酸铵—罗丹明B三元络合物体系分光光度法测定微量铜  

Spectrophotometric determination of trace copper in ternary complex system of CuⅠ-NH_4SCN-rhodamine B

作　　者：王庆伟[1] 王昕[2] 

机构地区：[1]四平师范学院,吉林四平136000 [2]四平粮食学校,吉林四平136000

出　　处：《冶金分析》2001年第2期41-42,共2页Metallurgical Analysis

摘　　要：本文提出了聚乙烯醇存在下 ,Cu —SCN—RDB三元络合物体系分光光度法测定微量铜的新方法。本方法灵敏度高 (ε =1 84× 10 5 ) ,选择性好 ,操作简便 ,结果准确。In the presence of polyvinyl alcohol a method for the spectrophotometric determination of trace copper in ternary complex system of Cu?-NH 3SCN-RDB has been presented. The method is easy to operate and has high sensitivity(ε=1 84×10 5L·mol -1 ·cm -1 ), higher selectivity,good precision(RSD%=3 4) and accuracy.

关 键 词：三元络合物 微量铜 分光光度法 测定 

分 类 号：O657.3[理学—分析化学]