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王水溶样-等离子体质谱法同时测定地质样品中砷锑铋银镉铟
引用本文:范凡,温宏利,屈文俊,曹亚萍. 王水溶样-等离子体质谱法同时测定地质样品中砷锑铋银镉铟[J]. 岩矿测试, 2009, 28(4): 333-336
作者姓名:范凡  温宏利  屈文俊  曹亚萍
作者单位:国家地质实验测试中心,北京,100037
基金项目:中国地质调查局研究项目,国家地质实验测试中心基本科研业务费项目 
摘    要:采用王水溶样-等离子体质谱法测定地质样品中砷、锑、铋、银、镉、铟6个元素,探讨了测定过程中对砷、银、镉、铟干扰的消除问题。方法检出限(10SD,μg/g)分别为:砷0.2、锑0.01、铋0.005、银0.01、镉0.01、铟0.005;精密度(RSD,n=12)分别为砷1.3%~3.0%、锑0.65%~2.3%、铋1.2%~2.6%、银3.2%~6.6%、镉3.7%~8.0%、铟1.1%~5.0%;加标回收率分别为砷96.8%~106%、锑102%~108%、铋102%~106%、银99.7%~104%、镉103%~108%、铟97.9%~100%。用拟定方法测定了国家一级标准物质中砷、锑、铋、银、镉、铟,结果与标准值相符。方法适用于岩石、土壤、水系沉积物等地质样品的测定。

关 键 词:王水溶矿  等离子体质谱法  地质样品  多元素测定
收稿时间:2008-10-29
修稿时间:2009-02-13

Determination of Arsenic, Antimony, Bismuth, Silver, Cadmium and Indium in Geological Samples by Inductively Coupled Plasma-Mass Spectrometry with Aqua Regia Sample Digestion
FAN Fan,WEN Hong li,QU Wen jun and CAO Ya ping. Determination of Arsenic, Antimony, Bismuth, Silver, Cadmium and Indium in Geological Samples by Inductively Coupled Plasma-Mass Spectrometry with Aqua Regia Sample Digestion[J]. Rock and Mineral Analysis, 2009, 28(4): 333-336
Authors:FAN Fan  WEN Hong li  QU Wen jun  CAO Ya ping
Affiliation:National Research Center for Geoanalysis;National Research Center for Geoanalysis;National Research Center for Geoanalysis;National Research Center for Geoanalysis
Abstract:This paper presents the method for determination of As, Sb, Bi, Ag, Cd and In in geological samples by inductively coupled plasma-mass spectrometry(ICP-MS) with aqua regia sample digestion. The elimination of the interference from coexistent elements on the determination of these elements was discussed. The detection limits (10SD, μg/g) are 0.2 for As, 0.01 for Sb, 0.005 for Bi, 0.01 for Ag, 0.01 for Cd and 0.005 for In. The recoveries are 96.8%~106% for As, 102%~108% for Sb, 102%~106% for Bi, 99.7%~104% for Ag, 103%~108% for Cd and 97.9%~100% for In, with the precision (RSD, n = 12) of 1.3%~3.0%, 0.65%~2.3%, 1.2%~2.6%, 3.2%~6.6%, 3.7%~8.0% and 1.1%~5.0% respectively. The method has been applied to the determination of these elements in the National Standard Reference Materials and the results are in agreement with the certified values.
Keywords:aqua regia sample digestion  inductively coupled plasma-mass spectrometry  geological sample  determination of multi-elements
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