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Volume 29 Issue 8
Jun.  2017
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Abstract
CAO Fang-hong , CHEN Xiao-xia , DING Jin-chun . Determination of Lead and Cadmium in Soil by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry[J]. Journal of Environmental and Occupational Medicine, 2012, 29(8): 498-500.
Citation: CAO Fang-hong , CHEN Xiao-xia , DING Jin-chun . Determination of Lead and Cadmium in Soil by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry[J]. Journal of Environmental and Occupational Medicine, 2012, 29(8): 498-500.
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Determination of Lead and Cadmium in Soil by Microwave Digestion-Graphite Furnace Atomic Absorption Spectrometry

  • 1.

    Deqing County Center for Disease Control and Prevention, Deqing, Zhejiang 313200, China


  • 2. Minhang District Center for Disease Control and Prevention, Shanghai 201101, China

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  • Corresponding author:

    DING Jin-chun ,Email:mhcdcwj@126.com

  • Received Date: January 16, 2012
    Graphical Abstract
    • Abstract
  • [Objective] To establish a method to measure lead and cadmium in soil by microwave digestion-graphite furnace atomic absorption spectrometry (FGAAS).

    [Methods] Soil samples were ground to pass 100-mesh sieve, digested using HNO3-HF-H2O2 under microwave treatment and determined by GFAAS.

    [Results] When the lead concentrations were in the range of 5.0-40.0 μg/L and the cadmium concentrations were in the range of 0.20-2.00 μg/L, the linearity of this method was good, with a correlation coefficient of 0.999 9. The detection limits of lead and cadmium were 5.0 and 0.040 mg/kg respectively. The recovery rate was 90.0%-110.0%. The relative standard deviation was 4.1%-6.9%. The determination results of standard samples were within the uncertainty.

    [Conclusion] The method is characterized by simple, rapid, and little disturbance with high accuracy; therefore, it is suitable for regular measurement of lead and cadmium in soil.

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