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本文讨论了阳极溶出法测定微量铅、镉。采用NH_4Cl-EDTA乙醇混合液为底液。在此底液中铅和镉在汞膜上的氧化-还原过程可逆性很好。经过试验拟定了微量铅、镉的分析方法并应用于环保分析。实践证明方法灵敏、准确、选择性好。故适用于各类试样中微量铅、镉的测定。
This article discusses the determination of trace lead and cadmium by anodic stripping. Using NH_4Cl-EDTA ethanol mixture as the bottom liquid. The oxidation and reduction processes of lead and cadmium in the mercury solution at the bottom of the solution are reversible. After testing to develop a trace of lead and cadmium analysis methods and applied to environmental analysis. Practice has proved that the method is sensitive, accurate and selective. It is applicable to all kinds of samples in the determination of trace lead and cadmium.