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本文提出了用C_u(Ⅱ)与二乙基二硫代氨基甲酸钠作用生成有色而稳定的螯合物,经萃取(法一)或不经萃取(法二),用分光光度法测定微量铜的两种方法。实验结果表明两法均能测到PPb级。
In this paper, it is proposed that the colored and stable chelates produced by the interaction of C_u (Ⅱ) and diethyldithiocarbamate can be extracted by the method of extraction or without extraction (method 2), and the trace copper Two ways. Experimental results show that both methods can measure PPb level.