| 双道氢化物原子荧光法同时测定地球化学样品中的微量砷和锑 |
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| 引用本文： | 张锦茂,范凡,郭小伟,杨密云.双道氢化物原子荧光法同时测定地球化学样品中的微量砷和锑[J].物探与化探,1984,8(3):150-161. |
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| 作者姓名： | 张锦茂 范凡 郭小伟 杨密云 |
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| 作者单位： | 地质矿产部物化探研究所
(张锦茂，范凡)，西北冶金地质研究所
(郭小伟)，西北冶金地质研究所(杨密云) |
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| 摘 要： | 已有大量研究工作表明砷是各种类型金矿床的极有效的探途元素,它也是许多热液多金属矿床的通用指示元素。锑作为指示元素做的工作比砷少,但是根据已有资料,它也是锑矿床、金矿床及多金属矿床的指示元素。我国最近发表的《苗龙金矿的发现》一文中很好地说明了砷及锑对找金矿的指示作用。
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DOUBLE CHANNEL HYDRIDE ATOMIC FLUORESENCESPECTROMETRY FOR SIMULTANEOUS DETERMINATIONOF TRACE ARSENIC AND ANTIMONY INGEOCHEMICAL SAMPLES |
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| Abstract: | Adouble channel hydride atomic fluoresence spectrometric method for simultaneous determination of trace arsenic and antimony in geochemical samples is described in this paper. In this procedure potassium borohydride is used as reductive agent, and the hydrides of arsenic and antimony produced are then introduced into a electrothermal silica tube "atomizer for determination. The detection limit for arsenic and antimony are 1.4 × 10-9 g and 3.7+10-10g. respectively.The procedure has been applied to analysis of standard-reference samples of stream sediments GSD1-8, developed by the Ministry of Geology and Mineral Resources for Geochemical survey and DSG Sreference samples for geochemical exploration GXR1-6, and a faily good agreement is bobtained bebween our determinations and the published data.The method is characterized by its simplicity, its speed of determination, as well as its high sensitivity and accuracy. |
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