电感耦合等离子体质谱测试硫化物中的微量元素

采用多种酸组合消解方法消解硫化物样品,最终选取A：HNO3密闭消解法;B：HCl＋HF与HNO3两步消解法对硫化物标准物质GBW07267（黄铁矿）、GBW07268（黄铜矿）,GBW07270（闪锌矿）及硫化物标准物质WMS-1a（块状硫化物）样品进行消解,采用ICP-MS测试了39种微量元素。结果表明,HNO3密闭消解法适合测试Bi,Ag,Mo,Li,Cs,Cr和V,而HCl＋HF与HNO3两步消解法消解法适合测试Au,Mn,Ti,Nb,Zr,Hf,Bi,Cd,In,Li,Rb,Cs,Cr,Ba,Sr,Co,Ni,Ga,Th,U,V,Sc,Y和REE等元素。...

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Published in分析化学 Vol. 39; no. 8; pp. 1228 - 1232
Main Author 殷学博 曾志刚 李三忠 武力 王晓媛 张国良 陈帅
Format Journal Article
LanguageChinese
Published 中国海洋大学海洋地球科学学院,青岛,266071 2011
中国科学院海洋研究所海洋地质与环境重点实验室,青岛,266071%中国科学院海洋研究所海洋地质与环境重点实验室,青岛,266071%中国海洋大学海洋地球科学学院,青岛,266071
Subjects
密闭消解法
标准物质
硫化物
硫化物
标准物质
密闭消解法
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ISSN0253-3820
DOI10.3724/SP.J.1096.2011.01228

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Summary:采用多种酸组合消解方法消解硫化物样品,最终选取A：HNO3密闭消解法;B：HCl＋HF与HNO3两步消解法对硫化物标准物质GBW07267（黄铁矿）、GBW07268（黄铜矿）,GBW07270（闪锌矿）及硫化物标准物质WMS-1a（块状硫化物）样品进行消解,采用ICP-MS测试了39种微量元素。结果表明,HNO3密闭消解法适合测试Bi,Ag,Mo,Li,Cs,Cr和V,而HCl＋HF与HNO3两步消解法消解法适合测试Au,Mn,Ti,Nb,Zr,Hf,Bi,Cd,In,Li,Rb,Cs,Cr,Ba,Sr,Co,Ni,Ga,Th,U,V,Sc,Y和REE等元素。
Bibliography:Sulfide; Standard reference material; Sealed decomposition method
Sulfides have complex matrix,dramatically varied mineral composition and high content of sulfur and most of sulfides are often insoluble,which results in low precision and accuracy in trace elements determination.Several kinds of acid group were used to digest sulfide samples.On the basis of analysis,（A） HNO3 sealed digestion method;（B） HCl＋HF and HNO3 two-step digestion method were used to further digest national standard sulfide and reference materials： GBW07267（pyrite）,GBW07268（chalcopyrite） and GBW07270（sphalerite） as well as international standard sulfide reference WMS-1a（massive sulfide） and about 39 elements（including Au,Ag and REE） were determined.The results suggest that HNO3 sealed digestion method is effective for the determination of Bi,Ag,Mo,Li,Cs and V.HCl＋HF and HNO3 two-step digestion method is suitable for determination for Au,Mn,Ti,Nb,Zr,Hf,Bi,Cd,In,Li,Rb,Cs,Cr,Ba,Sr,Co,Ni,Ga,Th,U,V,Sc,Y and REEs.
YIN Xue-Bo,ZENG Zhi-Gang,LI San
ISSN:0253-3820
DOI:10.3724/SP.J.1096.2011.01228