摘要
道了聚乙烯基吡咯烷酮（ＰＶＰ）－（ＮＨ４）２ＳＯ４－水的固－液萃取体系中Ａｕ（Ⅲ）、Ｐｔ（Ⅳ）、Ｐｄ（Ⅱ）溴络阴离子的萃取行为，在ＨＢｒ介质中，可萃取贵金属Ａｕ（Ⅲ）、Ｐｔ（Ⅳ）、Ｐｄ（Ⅱ）而与贱金属Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ａｌ（Ⅲ）、Ｃａ（Ⅱ）、Ｍｇ（Ⅱ）、Ｃｕ（Ⅱ）等分离，对合成样及实际样品进行了定量萃取分离测定，结果与其它方法相符，并对机理进行了初步探讨。
A new method for the separation of bromide complex anions of Au(Ⅲ),Pt(Ⅳ) and Pd(Ⅱ) with liquid-solid extraction system of polyvinylpyrrolidone-salt water was investigated.In the medium of HBr,the proposed method can separate Au(Ⅲ),Pt(Ⅳ) and Pd(Ⅱ) from Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Al(Ⅲ),Ca(Ⅱ),Mg(Ⅱ) and CuⅡ) and has been used for the separation of Au(Ⅲ),Pt(Ⅳ) and Pd(Ⅱ) in the samples of placer and anodoslime ,and the results agreed well with those by other methods.The mechanism has been studied preliminarily
出处
《分析试验室》
CAS
CSCD
1998年第3期81-83,共3页
Chinese Journal of Analysis Laboratory
关键词
PVP
萃取
金
铂
钯
分离
Polyvinylpyrrolidone
liquid-solid extraction
Au,Pt,Pd,ammonium bromide
