【摘要】 <正> 传统测定常量铜的方法常采用碘量法,其准确度较高,但是试剂较贵。用EDTA滴定法有时终点误差较大。以铜切口指示终点的交流示波极谱滴定法也可以测定铜,但铜的测定范围不很宽。我们曾用DDTC(二乙基二硫代氨基甲酸钠)作为有机螯合沉淀剂,并以它的切口出现为终点成功地进行了定影液中银的测定。利用这一原理,更多还原

【Abstract】 This report presents an analytical method for the determination of copper in alloy by oscillopolarographic titration. The method is rapid and accurate, and the end point is sharp. Satisfactory results can be obtained for the determination of copper in alloy with a relative standard deviation of 0.05％.更多还原