火焰原子吸收分光光度法测定锡阳极泥中的铟

Determination of Indium in Tin Anode Slime by Flame Atomic Absorption Spectrophotometry

试样经盐酸、硝酸分解后,以盐酸-氢溴酸挥发排除干扰元素锡、锑,在一定浓度的硝酸介质中,用火焰原子吸收分光光度计进行测定。该方法结果稳定,精密度高,操作简便,完全能满足锡阳极泥中铟含量在0.010%~0.500%时的测定。

The samples were decomposed by hydrochloric acid and nitric acid, and the interference elements Sn and Sb were volatilized by hydrochloric acid -hydrobromic acid. The samples were determined by flame atomic absorption spectrophotometer in a certain concentration of nitric acid. The method has the advantages of stability, high precision and simple operation, and can completely satisfy the determination of Indium content in tin anode slurries from 0. 010% to 0. 5%.