对于金川有色金属公司电解钴液中微量铜的试样,我们曾采用极谱法和原子吸收光度法直接测定,都末获得准确结果。采用三氯甲烷(或四氯化碳)-铜试剂(或双硫腙)萃取比色时,不能显示出正常的颜色,且该法存在操作烦琐,有机溶剂污染环境等缺点。因此,寻求分离铜的简便,有效方法无疑是一项很有意义的工作。 For Jinchuan non-ferrous metal company electrolytic solution of copper in a small amount of copper samples, we have used polarography and atomic absorption spectrometry direct determination, are not exactly the end result. When chloroform (or carbon tetrachloride) - copper reagent (or dithizone) is used to extract colorimetric color, normal color can not be displayed, and the method has some disadvantages such as cumbersome operation and organic solvent pollute the environment. Therefore, it is undoubtedly a very meaningful task to seek a convenient and effective method for separating copper.