LI Ping, LU Ji-dong, XIE Cheng-li, LI Jie, LIU Yan, YU Liang-ying. Measurement of carbon content in coal with laser-induced breakdown spectroscopy[J]. Journal of Applied Optics, 2007, 28(6): 756-759.
Citation: LI Ping, LU Ji-dong, XIE Cheng-li, LI Jie, LIU Yan, YU Liang-ying. Measurement of carbon content in coal with laser-induced breakdown spectroscopy[J]. Journal of Applied Optics, 2007, 28(6): 756-759.
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Measurement of carbon content in coal with laser-induced breakdown spectroscopy

  • 1.

    Electric Power College,South China University of Technology,Guangzhou 510640,China;

  • 2.

    National Key Laboratory for Coal Combustion,Huazhong University of Science &Technology,Wuhan 430074,China;

  • 3.

    College of Optoelectronic Science and Engineering,Huazhong University of Science &Technology,Wuhan 430074,China

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  • Corresponding author:

    LU Ji-dong

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    • Abstract
  • The feasibility of rapid quantitative analysis of coal by Laser-Induced Breakdown Spectroscopy technique was studied. The calibration curve method for LIBS quantitative analysis is introduced. Five coal samples were selected as investigation subjects, the carbon plasma line of 505.2nm was chosen as analysis spectrum line, and the carbon content of coal was analyzed quantitatively with delay of 0.8μs, 1.2μs, 1.6μs, 2.0μs and 2.4μs. The results were compared with the results measured with Element Analysis Instrument. The error measured in 1.6μs delay was the minimum, the effect of delay time on the quantitative analysis was analyzed. The results indicate that LIBS has a great potential in fast analysis of coal content.
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