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原子荧光光谱法在测定矿产中汞含量的应用研究 预览

Application of Atomic Fluorescence Spectrometry in the Determination of Mercury Content in Minerals
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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SnCl2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^-6g。 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 SnCl2 as a reducing agent. The correlation coefficient of mercury is 0.9999, the detection limit is less than 0.005ng/mL, and the determination range is (0.0005~6)×10^-6g.
作者 刘勇 LIU Yong(Radiation Detection Institute of the Seventh Brigade of Guizhou Nonferrous Metals and Nuclear Industry Geological Survey Bureau,Guiyang 550000,China)
出处 《世界有色金属》 2019年第6期176-176,178共2页 World Nonferrous Metals
关键词 原子荧光光谱法 矿产 测定 atomic fluorescence spectrometry mineral resources mercury determination
作者简介 刘勇,男,生于1984年,黎族,贵州安顺人,本科,应用化学工程师,研究方向:矿物分析。
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