Chinese Optics Letters, Volume. 7, Issue 6, 06545(2009)
Correction and analysis of lead content in soil by laser-induced breakdown spectroscopy
The laser-induced breakdown spectroscopy is used to analyze the lead content in soils. The analyzed spectral line profile is fitted by Lorentzian function for determining the background and the full-width at half-maximum (FWHM) intensity of spectral line. A self-absorption correction model based on the information of spectral broadening is introduced to calculate the true value of spectral line intensity, which refers to the elemental concentration. The results show that the background intensity obtained by spectral profile fitting is very effective and important due to removing the interference of spectral broadening, and a better precision of calibration analysis is acquired by correcting the self-absorption effect.
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Chengli Xie, Jidong Lu, Pengyan Li, Jie Li, Zhaoxiang Lin. Correction and analysis of lead content in soil by laser-induced breakdown spectroscopy[J]. Chinese Optics Letters, 2009, 7(6): 06545
Received: Oct. 7, 2008
Accepted: --
Published Online: Jun. 8, 2009
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