交流ポーラログラフ法による粗銅中ニッケルの分析

概要

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The favourable conditions for the determination of nickel in crude copper have been sought with respect to the composition of supporting electrolyte, the concentration of copper, the temperature of electrolyte, the superimposed voltage, the distance between electrodes, the influence of other elements, and so on.<BR>It was found that nickel together with lead can be determined in the presence of copper with nearly the same conditions as that already reported for the determination of lead in crude copper, except, that a definite amount of lead is to be added to the sample solution in order to diminish the errors caused by the variation of the lead content. The analytical values agreed approximately with those obtained by the usual method (dimethyl glyoxime and D. C. polarography).<BR>The A. C. method was confirmed to be superior to the D. C. method with respect to the shape of wave, and also to be more recommendable than the latter for routine work.
社団法人日本分析化学会の論文