LI Yong, LU Ji-dong, LIN Zhao-xiang, XIE Cheng-li, LI Jie, LI Peng-yan. Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy[J]. Journal of Applied Optics, 2008, 29(5): 789-792.
Citation: LI Yong, LU Ji-dong, LIN Zhao-xiang, XIE Cheng-li, LI Jie, LI Peng-yan. Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy[J]. Journal of Applied Optics, 2008, 29(5): 789-792.
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Quantitative analysis of lead in soil by laser-induced breakdown spectroscopy

  • 1.

    State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,China;

  • 2.

    College of Electrics and Information Engineering,South Central University for Nationalities,Wuhan 430074,China

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  • Corresponding author:

    LU Ji-dong

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  • Fast quantitative analysis of lead in the simulated soil made of chemical reagents（PbCl2, SiO2, CaCO3 and KBr）was carried out with the laser-induced breakdown spectroscopy. The result shows that the signal-to-noise ratio increases and then decreases with the time delay. The calibration curves of Pb content were constructed with the spectrogram acquired in experiments. It is found by the investigation that the average relative error of the method for the fast quantitative analysis of lead in soil is 8.33% and the minimum detection limit is 89μg/g. The experimental result proves LIBS is capable of being used in the detection of lead in soil.
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