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关于砷的极谱法测定,K.Bambach,J.I.Lingane等证实五价砷在各种支持电解质中不能在求阴极被还原,惟有三价砷在酸性底液中才有被还原的可能;并作出在盐酸、硫酸、硝酸底液中的还原波,Kryukova也曾得到三价砷在磷酸及硫酸中的还原波。和在作元素分组的极谱研究时,报告在硫醇介质中,Sb、Sn和As波形分开的极谱圆上,砷给出三个还原波的情况,日本筑正男、望月等测定钢铁中的痕量砷时,以硝酸加入氯化物为底液,并
Polarographic determination of arsenic, K. Bambach, JILingane and other confirmed that pentavalent arsenic in a variety of supporting electrolytes can not be sought for the cathode is reduced, only the trivalent arsenic in the acidic bottom liquid may be reduced; and made In the hydrochloric acid, sulfuric acid, nitrate solution of the bottom of the reduction, Kryukova has also been trivalent arsenic in phosphate and sulfuric acid reduction wave. And in the polarographic study of elemental grouping, the report states that three reducing waves are present on the polarographic circles separated by the Sb, Sn and As waveforms in the thiol medium, and Tsukimoto Mizuho, Mochizuki et al. Of traces of arsenic, nitric acid chloride as a base solution, and