Platinum Group Elements and Re-Os Isotope Analyses for Geological Samples Using a Single Digestion Procedure
详细信息
- 责任者：Li Jie (State Key Laboratory of Isotope Geochemistry ; Guangzhou Institute of Geochemistry ; Chinese Academy of Sciences ; Guangzhou 510640 ; China) ; Zhong Lifeng
- 刊名：Geochimica
- 出版年：2011
- 卷期：40(4)
- 关键词：铂族元素 ; platinum group elements ; 铼同位素 ; rhenium isotopes ; 锇同位素 ; osmium isotopes
- 页码：p.372-380
- 图表：6 illus., 3 tables, 37 refs.
- 分类号：0600
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
///Here we report a chemical procedure for separating platinum group elements(PGEs,Os,Ir,Pt,Pd,Ru) and Re using a single sample digestion.The procedure consists of the following five steps:(1) sample dissolution via Carius tube technique;(2) separation of Os from the PGEs and Re and other matrix elements using CCl4 solvent extraction;(3) purification of Os using micro-distillation method;(4) separation of PGEs and Re from other matrix elements on cation exchange resin;(5) the interference elements,such as Zr,Hf,Mo and W,were separated from the PGEs and Re fraction solution by "BPHA" chelated resin.The concentrations of PGEs(Pt,Pd,Ru and Ir) and Re were determined by isotope dilution-inductively coupled plasma mass spectrometry(ID-ICPMS);the abundance and isotopic composition of Os were measured using isotope dilution-negative thermal ionization mass spectrometry(ID-NTIMS).The analytical results of PGEs and Re-Os isotopic system for international rock reference materials show good agreement with previous reported data.
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