三元配合物光度法测定试剂中痕量铜的研究

Study on the spectrophotometric determination of trace copper in reagents by a ternary complex system

提出了Ｃｕ（Ⅱ）－茜素红Ｓ－甲基紫－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（ε＝１．１２×１０４Ｌ·ｍｏｌ－１·ｃｍ－１），选择性好，精密度可靠，用于测定化学试剂中的痕量Ｃｕ（Ⅱ），结果满意。

In this paper the spectrophotometric determina tion of trace copper with the ternary complex system of on(n )-alizarin red s-methyl violet-polyethyleneglycol has been introduced. The method has been used to determine trace copper in reagents with sati sfactory results.