| 利用同一化学流程分析地质样品中的铂族元素含量和铼-锇同位素组成 |
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| 引用本文： | 李杰,钟立峰,涂湘林,胡光黔,孙彦敏,梁细荣,许继峰.利用同一化学流程分析地质样品中的铂族元素含量和铼-锇同位素组成[J].地球化学,2011(4):372-380. |
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| 作者姓名： | 李杰 钟立峰 涂湘林 胡光黔 孙彦敏 梁细荣 许继峰 |
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| 作者单位： | [1]中国科学院 广州地球化学研究所 同位素地球化学国家重点实验室, 广东 广州 510640 [2]中国科学院 南海海洋研究所, 广东 广州 510301 |
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| 基金项目： | 国家自然科学青年基金（40903007,40806049）,广东省自然科学基金（9151064004000010） |
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| 摘 要： | 报道了利用一次溶样和同一化学流程分离富集地质样品中铂族元素(Pt、Pd、Os、Ir和Ru)和Re的方法.该化学流程包括以下几个步骤:(1) Carius管溶样法分解岩石样品中富集铂族元素的矿物;(2)四氯化碳萃取法分离出Os;(3)微蒸馏法进一步纯化Os;(4)阳离子交换树脂法将铂族元素(Pt、Pd、Ir和Ru)以及R...
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| 关 键 词： | 铂族元素 铼-锇同位素 阳离子交换树脂 “钽试剂”螯合树脂 热电离质谱 电感耦合等离子体质谱 |
Platinum group elements and Re-Os isotope analyses for geological samples using a single digestion procedure |
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| LI Jie,ZHONG Li-feng,TU Xiang-lin,HU Guang-qian,SUN Yan-min,LIANG Xi-rong,and XU Ji-feng.Platinum group elements and Re-Os isotope analyses for geological samples using a single digestion procedure[J].Geochimica,2011(4):372-380. |
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| Authors: | LI Jie ZHONG Li-feng TU Xiang-lin HU Guang-qian SUN Yan-min LIANG Xi-rong and XU Ji-feng |
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| Institution: | 1. State Key Laboratory of Isotope Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China;2. South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China |
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| Abstract: | 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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| Keywords: | PGEs Re-Os isotope cation exchange resin “BPHA” chelated resin NTIMS ICP-MS |
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