分光光度法测定矿石中痕量金的富集方法的研究 Ⅰ.泡沫塑料静态吸附解脱金的研究  

Separation and Preconcentration of Trace Gold in Ores With Polyurethane Foam for Spoctrophotometric Determination——Ⅰ.Studies on Static Adsorption and De-adsorption of Gold

作　　者：任英[1] 张晶玉[1] 张佩勋[1] 

机构地区：[1]中国科学院长春应用化学研究所,长春130022

出　　处：《分析化学》1991年第5期588-590,共3页Chinese Journal of Analytical Chemistry

摘　　要：本文详细地研究了泡沫塑料静态吸附金的条件及用硫代米蚩酮光度法测定金时 Tl、Hg、Ag、Pd 等干扰离子的分离及消除干扰的方法,并提出了定量解脱金的简便方法。拟定了快速测定矿石中金的分析方法。The optimum condition of gold static adsorbed on polyurethane foam and the agent of de-adsorbed gold have been investigated.Ti,Hg,Ag and Pd also were adsorbed on foam and interfere with the determination of Au by spectrophometric method with thio- michler's ketone and Tween-80.Hg,Ag and Pd were removed by washing foam with 20.% aqua regia solution at 55℃.The interference from T1 was eliminated with dual-wavelength method.A simple and rapid method for the separation and preconcentration of trace gold in ores by polyurethane foam has been developed for the spectrophotometric dermination of gold with satisfactory results.

关 键 词：矿石 金 测定 分光光度法 泡沫塑料 

分 类 号：P575.4[天文地球—矿物学]