原子荧光光谱法在测定矿产中汞含量的应用研究

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英文篇名：Application of Atomic Fluorescence Spectrometry in the Determination of Mercury Content in Minerals 作者：刘勇 英文作者：LIU Yong;Radiation Detection Institute of the Seventh Brigade of Guizhou Nonferrous Metals and Nuclear Industry Geological Survey Bureau; 关键词：原子荧光光谱法 ; 矿产 ; 汞 ; 测定 英文关键词：atomic fluorescence spectrometry;;mineral resources;;mercury;;determination 中文刊名：COLO 英文刊名：World Nonferrous Metals 机构：贵州省有色金属和核工业地质勘查局七总队辐射检测院; 出版日期：2019-06-10 08:06 出版单位：世界有色金属 年：2019 期：No.522 语种：中文; 页：COLO201906094 页数：2 CN：06 ISSN：11-2472/TF 分类号：187+189

摘要

试样先经硫酸处理后再加入高氯酸、过氧化氢破坏有机质,以逆王水溶解样品,加入适量的重铬酸钾作保护剂,不经分离于原子荧光光度计上,选定仪器工作条件,用SnCl_2作还原剂直接测定矿物中微量汞的含量。汞的相关系数为0.9999,检出限≤0.005ng/mL,测定范围(0.0005～6)×10~(-6)g。
        The samples were treated with sulphuric acid and then destroyed by perchloric acid and hydrogen peroxide. The samples were dissolved in reverse Aqua regia, and potassium dichromate was added as a protective agent. Without separation on the atomic fluorescence spectrometer, the working conditions of the instrument were selected, and the content of Trace Mercury in minerals was determined directly with SnCl_2 as a reducing agent. The correlation coefficient of mercury is 0.9999,the detection limit is less than 0.005 ng/mL, and the determination range is (0.0005～6)~*10~(-6) g.

引文

[1]赵超,王钊,吴楠,等.固体进样-直接测汞仪测定铁矿石中的汞[J].现代矿业,2018,34(3):232-233.