摘要
纯化了捕集剂，用锍试金结合Ｔｅ共沉淀富集，等离子体质谱法测定了地质样品中的铂族元素。全流程铂族元素回收率大于９４％。一次熔样可同时测定６个铂族元素。按２０ｇ取样计算，方法检出限（ｎｇ／ｇ）分别为：００２４Ｒｕ，００１３Ｒｈ，０２０Ｐｄ，００３３Ｏｓ，０３９Ｉｒ，０１２Ｐｔ；对标准ＧＰｔ６平行测定５次，铂族元素相对标准偏差为１％（Ｏｓ）～８％（Ｐｔ）；对不同类型标样进行测定。
The preconcentration and determination of trace platinum group elements(PGEs) in geological materials by nickel sulphide fire assay tellurium coprecipitation_ICP MS is described in this paper. Six PGEs can be collected and determined simultaneously in one fusion. Recoveries for all PGEs are better than 94%. The precision for six PGEs determined in standard reference material(GPt 6) is 1%(Os)～8%(Pt) RSD.\ The detection limits(ng/g) for PGEs are 0.024 for Ru, 0.013 for Rh, 0.20 for Pd, 0.033 for Os, 0.39 for Ir and 0.12 for Pt. The method has been applied to the determination of PGEs in geological reference materials with satisfactory results.
出处
《岩矿测试》
CAS
CSCD
北大核心
1997年第1期12-17,共6页
Rock and Mineral Analysis
基金
地质矿产部定向基金
关键词
铂族元素
锍试金
等离子体质谱
贵金属元素
platinum group elements, nickel sulphide fire assay, coprecipitation, isotope dilution, inductively coupled plasma mass spectrometry(ICP MS)
