王春妍, 张旺强, 李瑞仙, 毛振才. 铁盐增敏-石墨炉原子吸收法测定岩石样品中超痕量金[J]. 分析测试技术与仪器, 2008, 14(4): 233-235.
引用本文: 王春妍, 张旺强, 李瑞仙, 毛振才. 铁盐增敏-石墨炉原子吸收法测定岩石样品中超痕量金[J]. 分析测试技术与仪器, 2008, 14(4): 233-235.
WANG Chun-yan, ZHANG Wang-qiang, LI Rui-xian, MAO Zhen-cai. Determination of Ultra Trace Gold in Rock Samplesby Graphite Furnace Atomic Absorption Spectrometry with Molysite Increasing Sensitivity[J]. Analysis and Testing Technology and Instruments, 2008, 14(4): 233-235.
Citation: WANG Chun-yan, ZHANG Wang-qiang, LI Rui-xian, MAO Zhen-cai. Determination of Ultra Trace Gold in Rock Samplesby Graphite Furnace Atomic Absorption Spectrometry with Molysite Increasing Sensitivity[J]. Analysis and Testing Technology and Instruments, 2008, 14(4): 233-235.

铁盐增敏-石墨炉原子吸收法测定岩石样品中超痕量金

Determination of Ultra Trace Gold in Rock Samplesby Graphite Furnace Atomic Absorption Spectrometry with Molysite Increasing Sensitivity

  • 摘要: 在解脱测定液中引入三价铁盐,并在其增敏下,使用石墨炉原子吸收法测定岩石样品中的超痕量金.方法检出限为0.02 ng/g,精密度(RSD,n=12)为5%~8%.方法准确可靠. 进行国家一级标样物质的测试,结果符合质量要求,与标准值吻合.

     

    Abstract: Molysite is introduced into releasing agent and with the increasing sensitivity of molysite , a method for determination of ultra trace gold in rock samples by graphite furnace atomic absorption spectrometry is introduced . Detction limit of the method is 0.02 ng/g with precision of 5%~8% RSD n=12 . The method is accurate and reliable . Through the test of first grade national standard reference materials, the result meets the quality demand and is in agreement with certified values .

     

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