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利用铜使 Brdicks 氢催化波降低,可测定铅中微量铜。本文研究了测定铜的浓度范围,并在前文研究的各种条件的基础上,进一步研究了某些干扰离子及表面活性物质的影响,拟定了在此体系中测定铜的适宜方法。在测定铅中微量铜时,与常用的二乙胺基二硫代甲酸钠比色法及阳极溶出伏安法所得结果相符。所用仪器为普通极谱分析仪器,但灵敏度比普通极谱分析大50倍。
The use of copper to Brdicks hydrogen catalytic wave reduction can be measured trace lead in copper. In this paper, the determination of copper concentration range, and in the previous study on the basis of various conditions, further study of some of the interference ions and surfactant impact of the proposed in this system to determine the appropriate method of copper. In the determination of trace amounts of lead in the lead, it is consistent with the results obtained by the colorimetric and anodic stripping voltammetry of the commonly used diethyldithiocarbamate sodium. The instrument used for ordinary polarographic instruments, but the sensitivity 50 times larger than normal polarographic analysis.