Cu(Ⅱ)-茜素红-罗丹明B-聚乙烯体系 光度法测定痕量铜  

Determination of Trace Copper by Spectrophotomtric Method under the System of Cu(Ⅱ) － Alizarin Red - Rhodamine B - Polyethylene Glycols

作　　者：孙威[1] 许香玉 张斌 吕明 

机构地区：[1]四平市水文水资源勘测局,吉林四平136000

出　　处：《吉林水利》2000年第2期28-30,共3页Jilin Water Resources

摘　　要：本文提出了 Ｃu（Ⅱ）－茜素红－罗丹明 Ｂ－聚乙烯醇三元配合物体系光 度法测定Ｃｕ（Ⅱ）的新方法。该方法灵敏度高（Σ＝１．２３ Ｘ １０４Ｌ·ｍｏｌ－１·ｃｍ－１）， 选择性好，精密度可靠，用于测定水中痕量 Ｃu（Ⅱ），结果令人满意。The new spectrophotometric method to determine Cu(Ⅱ) under the ternary complex system of Cu(Ⅱ) - Alizarin Red - Rhodamine B - Polyethylene Glycols is presented in the paper. The mothod, its sensitivity is high (Σ= 1. 23 x 104L. mol- l cm - 1 ), its selectivity is good and its precision is reliable, is used to determine the trace Cu(Ⅱ) in water, and its results are satisfactory.

关 键 词：茜素红 罗丹明B 光度法 铜 聚乙烯 水分析 

分 类 号：O661[理学—分析化学] O614.121[理学—化学]