| 微波消解—电感耦合等离子体质谱法测定矿物标样中的贵金属 |
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| 引用本文： | 杨永丽,刘少轻,施燕支.微波消解—电感耦合等离子体质谱法测定矿物标样中的贵金属[J].首都师范大学学报(自然科学版),2009,30(2):28-31. |
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| 作者姓名： | 杨永丽 刘少轻 施燕支 |
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| 作者单位： | 1. 首都师范大学化学系,北京,100048
2. 首都师范大学分析测试中心,北京,100048 |
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| 基金项目： | 北京市自然科学基金，北京市教委资助项目 |
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| 摘 要： | 本文利用电感耦合等离子质谱仪（ICP-MS）测定地质标样中的贵金属元素Pt、Pd、Rh,比较了不同消解方法对地质样品中贵金属含量的影响,研究建立了Pd的校正方程,有效克服了质谱干扰.Pt、Pd、Rh的检出限分别为1.59 ng.g^-1,0.82 ng.g^-1,0.04 ng.g^-1.精密度为3.4%-13.0%,为大量地质样品中贵金属元素的快速分析提供了参考.
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| 关 键 词： | 电感耦合等离子体质谱 贵金属 干扰方程 |
Direct Determination of Noble Metal in Geo-chemical Samples by ICP-MS |
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| Yang Yongli,Liu Shaoqing,Shi Yanzhi.Direct Determination of Noble Metal in Geo-chemical Samples by ICP-MS[J].Journal of Capital Normal University(Natural Science Edition),2009,30(2):28-31. |
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| Authors: | Yang Yongli Liu Shaoqing Shi Yanzhi |
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| Institution: | 1.Chemistry Department Capital Normal University;Beijing 100048;2.Analysis and Experiment Center Capital Normal University |
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| Abstract: | A method of using aqua regia digests Geo-chemical standard reference sample, and using ICP-MS determinate noble metal directly is established. The effects of different methods for noble metal are compared and it establishes a correct equation for Pd, This method surmounts mass spectrum interferences efficiently. The detection limits of the method were 1.59 ng/g for Pt, 0.82 ng/g for Pd and 0.04 ng/g for Rh. The precision （n = 12） is between 3.4% - 13.0% was obtained. This method has offered a reference for the determination of these three trace elements in geo-chemical samples. |
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| Keywords: | inductively coupled plasma-mass spectrometry （ICP-MS） noble metal correct equation |
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