摘要
采用HD-8微色谱柱对高稀土铁矿石样品(白云鄂博矿)中的钍进行分离富集,探讨了影响其分离富集的条件。实验表明,在4 mol/L HCl介质中钍可被树脂完全吸附,用3 mL 40 g/L草酸铵溶液可以从吸附柱上完全解吸钍,并结合偶氮胂Ⅲ分光光度法进行测定。所建立的方法适合于含铁、稀土量高的矿石样品中微量钍的分离与测定。
The optimum conditions of separation and preconcentration for thorimn are studied in this paper. Thorimn is adsorbed by HD-8 resin in 4 mol/L HC1 solution, and eluted completely by using 3 mL of 4% ammonimn oxalate, then determined by spectrophotometry. The method is simple, accurate and applicable to the separation and determination of trace thorimn in lanthanoniron ore samples.
出处
《分析试验室》
CAS
CSCD
北大核心
2008年第3期52-55,共4页
Chinese Journal of Analysis Laboratory
基金
核资源与环境教育部重点实验室开放基金
白云额博矿钍的赋存状态与溶出规律研究(60612)项目资助
关键词
微色谱柱
分离富集
高稀土-铁矿
钍
Microcolunm
Separation
Preconcentration
Lanthanon-iron ore
Thorimn
