摘要
以王水（体积分数为２０％）作移动相，以硅胶球负载的ＴＢＰ作固定相，反相萃取层析使微量Ａｕ（Ⅲ）、Ｔｌ（Ⅲ）与Ｆｅ３＋、Ｃｕ２＋、Ａｇ＋、Ｚｎ２＋、Ｍｎ２＋、Ｈｇ２＋、Ｃｄ２＋、Ｐｂ２＋、Ｓｂ５＋、Ａｓ５＋、Ｇａ３＋、Ｉｎ３＋、Ｐｔ２＋、Ｐｄ２＋等多种离子分离，留于柱上的铊、金分别用ＮａＡｃ溶液（量浓度为１ｍｏｌ／Ｌ）及Ｎａ２ＳＯ３溶液（质量浓度为１０ｇ／Ｌ）洗脱进行连续分离与测定（结晶紫光度法测定铊，孔雀绿光度法测定金），回收率可达９６％以上，方法已应用于地质样品中金、铊的连续分离与测定。
Using chlorazotic acid[φ(chlorazotic acid)=20%] as mobile phase,with tri butyl phosphate on sillca gel as the stationary phase,Gold(Ⅲ) and Thallium(Ⅲ) can be separated from Fe 3+ 、Cu 2+ 、Ag + 、Zn 2+ 、Mn 2+ 、Hg 2+ 、Cd 2+ 、Pb 2+ 、Sb 5+ 、As 5+ 、Ga 3+ 、In 3+ 、Pt 2+ 、Pd 2+ etc by reversed phase extraction chromatography.Gold(Ⅲ) and Thallium(Ⅲ) on the column,were released with sodium acetate solution (1mol/L) and sodium sulfite solution (10g/L) respectively for continuous separation and determination [thallium(Ⅲ) is determined by crystal violet spectrophotometry,gold(Ⅲ) is determined by malachite green spectrophotometry].Recovery rate is over 96%.The method has been successfully applied to the continuous separation and determination of trace amounts of gold(Ⅲ) and thallium (Ⅲ) in geologycal samples.
出处
《分析试验室》
CAS
CSCD
1999年第1期1-4,共4页
Chinese Journal of Analysis Laboratory
关键词
硅胶
TBP
反相萃取层析
金
铊
测定
Silica gel
tri butyl phosphate
reversed phase extraction chromatography
Gold(Ⅲ)
Thallium(Ⅲ)
