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石墨探针直接收集、石墨探针炉原子吸收法测定APM中痕量银

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葛伊莉, 张必成, 蔡火操, 周立群. 石墨探针直接收集、石墨探针炉原子吸收法测定APM中痕量银[J]. 环境化学, 1998, 17(2): 191-194.
引用本文: 葛伊莉, 张必成, 蔡火操, 周立群. 石墨探针直接收集、石墨探针炉原子吸收法测定APM中痕量银[J]. 环境化学, 1998, 17(2): 191-194.
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Ge Yili, Zhou Liqun, Zhang Bicheng, Cai Huocao. DIRECT COLLECTION WITH GRAPHITE PROBE FILTERS AND DETERMINATION OF TRACE SILVER IN ATMOSPHERIC PARTICULATE MATTER BY GRAPHITE PROBE FURNACE ATOMIC ABSORPTION SPECTROMETRY[J]. Environmental Chemistry, 1998, 17(2): 191-194.
Citation: Ge Yili, Zhou Liqun, Zhang Bicheng, Cai Huocao. DIRECT COLLECTION WITH GRAPHITE PROBE FILTERS AND DETERMINATION OF TRACE SILVER IN ATMOSPHERIC PARTICULATE MATTER BY GRAPHITE PROBE FURNACE ATOMIC ABSORPTION SPECTROMETRY[J]. Environmental Chemistry, 1998, 17(2): 191-194.
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石墨探针直接收集、石墨探针炉原子吸收法测定APM中痕量银

  • 1.

    湖北大学化学系 武汉 430062;

  • 2.

    湖北大学实验中心

DIRECT COLLECTION WITH GRAPHITE PROBE FILTERS AND DETERMINATION OF TRACE SILVER IN ATMOSPHERIC PARTICULATE MATTER BY GRAPHITE PROBE FURNACE ATOMIC ABSORPTION SPECTROMETRY

  • 1.

    Department of Chemistry, Hubei University. Wuhan, 430062

  • 摘要: 本文采用一定气孔性的石墨探针直接收集大气颗粒物(APM),然后用石墨探针炉原子吸收法直接测定收集在探针上的APM中痕量银。实验表明:峰面积吸光度与银的浓度在0-120ng·ml-1范围内呈线性关系,银的特征量为6.75pg,检测限(3σ)为11.74pg,RSD(n=11)为3.92％,分析标准物质NBS1648(城市颗粒物),其回收率和RSD(n=5)分别为90.2-105.0％和6.0％,证明此法准确、灵敏、快速、简便。
    Abstract: A novel analytical method for direct determination of trace silver in atmospheric particulate matter by graphite probe furnace atomic absorption spectrometry after the collection with graphite probe filters has been investigated in this paper. The results showed that the absorbance (peak-area mode)and the concentration of silver had a linear relation in the range of 0-120 ng·ml-1 according to this method. The characteristic mass of silver was 6.75 pg and the detection limit(3σ)was 11.74 pg. Its relative standard deviation was 3. 92%. The results of analysis of the National Bureau of Standard of America, Standard Reference Material (SRM)No. 1648, Urban Particulate Matter, gave a recovery of 90. 2-105. 0% and a precision of 6. 0% RSD. The method proved to be accurate,sensitive, simple and rapid.
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  • 收稿日期:  1996-11-01

石墨探针直接收集、石墨探针炉原子吸收法测定APM中痕量银

  • 1.  湖北大学化学系 武汉 430062;
  • 2.  湖北大学实验中心
  • 收稿日期:  1996-11-01

摘要: 本文采用一定气孔性的石墨探针直接收集大气颗粒物(APM),然后用石墨探针炉原子吸收法直接测定收集在探针上的APM中痕量银。实验表明:峰面积吸光度与银的浓度在0-120ng·ml-1范围内呈线性关系,银的特征量为6.75pg,检测限(3σ)为11.74pg,RSD(n=11)为3.92％,分析标准物质NBS1648(城市颗粒物),其回收率和RSD(n=5)分别为90.2-105.0％和6.0％,证明此法准确、灵敏、快速、简便。

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