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铜 (Ⅱ )与二乙基胺二硫代甲酸钠 (铜试剂 ,简称ＤＤＴＣ)形成的络合物在水中溶解度很小 ,通常是用四氯化碳萃取后进行分光光度分析〔1〕,操作比较复杂。我们发现十二烷基苯磺酸钠阴离子胶束介质对该铜络合物有明显增溶作用 ,可不经萃取直接进行光度分析测定 ,方法简单、实用。
The complex formed between copper (II) and sodium diethyldithiocarbamate (copper reagent, referred to as DDTC) has a low solubility in water and is usually extracted by carbon tetrachloride spectrophotometry (1) complex. We found that sodium dodecylbenzenesulfonate anion micelle medium has a significant solubilization effect on the copper complex, which can be directly extracted without photometric determination, the method is simple and practical.