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中国无机分析化学:2019,9(4):19-23
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氢化物发生-原子荧光光谱法测定1:5万区域地质调查样品中的As、Sb、Bi、Hg等4种元素
(1.湖南省有色地质勘查研究院 测试中心;2.湖南有色金属研究院)
Determination of regional geochemical survey(1:50000)samples of As,Sb,Bi,Hg by Hydride Generation-Atomic Fluorescence Spectrometer
(1.Hunan Nonferrous Geological Exploration Institute of Testing Centers,Hunan;2.Hunan Research Institute of nonferrous metals,Hunan)
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投稿时间:2019-04-02    修订日期:2019-06-13
中文摘要: 建立了氢化发生-原子荧光光谱法测定1:5万区域地质调查样品中的As、Sb、Bi、Hg等4种元素的分析方法,通过采用王水(1+1)分解样品,在5%的盐酸介质中,用硼氢化钾作为还原剂进行As、Sb、Bi、Hg等4种元素的氢化物发生-原子荧光光谱法测定。方法检出限为0.0089(As)、0.0081(Sb)、0.0081(Bi)、0.0017(Hg)μg/g, 测定结果的相对标准偏差(RSD,n=12)为0.82%-7.62%,准确度△Lg C=-0.01-0.02。该方法简便,成本低,检测结果准确,检出限、准确度及精密度均能达到行业规范要求,适用于1:5万区域地质调查样品水系沉积物、土壤中As、Sb、Bi、Hg等4种元素的测定。
Abstract:The method for the determination of As, Sb, Bi and Hg in 1:50 000 regional geological survey samples by hydride generation-atomic fluorescence spectrometry was established. The samples were decomposed by aqua regia (1+1) and determined by Hydride Generation-Atomic Fluorescence Spectrometry with potassium borohydride as reducing agent in 5% hydrochloric acid medium. The detection limits were 0.0089 (As), 0.0081 (Sb), 0.0081 (Bi), 0.0017 (Hg) ug/g. The relative standard deviation (RSD, n = 12) of the results was 0.82% - 7.62%, and the accuracy was Lg C= - 0.01 - 0.02. The method is simple, low-cost, accurate, and can meet the requirements of industry specifications. It is suitable for the determination of As, Sb, Bi, Hg and other four elements in river sediment and soil of 1:50,000 regional geological survey samples.
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谭丽娟,唐玉霜,黄利宁,邓述培,侯丹.氢化物发生-原子荧光光谱法测定1:5万区域地质调查样品中的As、Sb、Bi、Hg等4种元素[J].中国无机分析化学,2019,9(4):19-23.
TANLi–juan,TANGYu-shuang,HUANGLi-ning,DENG Shu-pei,HOU-Dan.Determination of regional geochemical survey(1:50000)samples of As,Sb,Bi,Hg by Hydride Generation-Atomic Fluorescence Spectrometer[J].Chinese Journal of Inorganic Analytical Chemistry,2019,9(4):19-23.

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