论文部分内容阅读
这篇研究的目的,是要在Bi~(+++),Pb~(++),Cu~(++),Cd~(++)四种金属离子,甚至連As~(+3),As~(+5),Sb~(+3),Sn~(+(2)4),Hg~(+2)在内,共九种离子存在的混合液中,用某些有机試剂的点滴反应,卽可直接分别鑑定Bi、Pb、Cu及Cd,而不需任何分离,这样就能得到一系列的快速分析法。具体說来,在銅砷组中,直接鑑定Bi的有机試剂以硫脲为最宜,直接鑑定Pb的,以玫瑰紅酸鈉为最宜;在鑑定Pb时,硫脲的方法只可有时作为参考。直接鑑定Cu的,以二硫代乙二酰胺为最宜,水楊醛肟次之卑磋a定
The purpose of this study is to study the effects of four kinds of metal ions such as Bi ~ (+++), Pb ~ (++), Cu ~ (++) and Cd ~ (++) (+5), Sb ~ (+3), Sn ~ (+ (2) 4), Hg ~ (+2), a total of nine kinds of ions exist in the mixed solution, with some organic reagents Of the reaction, 卽 can be directly identified Bi, Pb, Cu and Cd, without any separation, so you can get a series of rapid analysis. Specifically, in the copper arsenic group, direct identification of Bi organic reagents to thiourea as the most appropriate direct identification of Pb, with sodium rosinate as the most appropriate; in the identification of Pb, thiourea method can only be sometimes Reference. Direct identification of Cu, with dithioethane diamide as the most appropriate, salicylaldoxime next h