摘要
本文提出了一个纯镉中连测定铊和锑的方法,先在1.5mol/L盐酸溶液中用乙酸异戌酯萃取分离铊(Ⅲ),然后直接在有机相中以结晶紫分光光度法测定铊。萃取后的水相以甲笨为萃取剂孔雀绿分光光度法测定锑。方法灵敏、简便、除金外其它元素没有干扰。
A consecutive method for the determination of Tl and Sb in cadmium has been developed. The Tl(Ⅲ ) is extracted by isoamyl acetate in 1. 5mol/L HCl first,then Tl is directly determined with crystal violet in the organic layer,and Sb is determined in the aqueous phase by malachite green spectrophotometric method using toluene as the extractant. The method is sensitive and simple, only Au (Ⅲ)interferes.
出处
《分析试验室》
CAS
CSCD
北大核心
1992年第3期20-21,共2页
Chinese Journal of Analysis Laboratory
关键词
铊
锑
连续测定
金属镉
光度法
Thallium and antimony determination
crystal violet spectrophotometry
malachite green spectrophotometry
isoamyl acetate extraction, toluene extraction
cadmium
