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.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第5期588-590,共3页
Chinese Journal of Analytical Chemistry
关键词
矿石
金
测定
分光光度法
泡沫塑料
Gold
Separation
Polyurethane foam
Spectrophotometry
Thio-michler's ketone
