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Proceedings Paper

Optimization of laser induced breakdown spectroscopy system by neurogenetic method for multi-elemental analysis of heavy metals in soil
Author(s): Lituo Liu; Jianguo Liu; Nanjing Zhao; Yin Wang
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Paper Abstract

Laser indued breakdown spectroscopy(LIBS) system was used for analysis of heavy metals (Cr, Pb, Cu, Ni, Cd, Zn) in soil. And neuro-genetic method was applied to optimize the system parameters in order to maximize the signal-background ratio of all heavy metals simultaneously. LIBS system equipped with an Andor Echelle spectrometer, coupled to an ICCD detector. A Q-switched Nd:YAG laser was used to induced plazma. Delay time, integration time, scan times of laser pluse, frequency of laser were optimized. The optimized parameters were obtained: 1μs delay time, 4.5μs integration time, 48 scan times, and 11Hz frequency of laser.

Paper Details

Date Published: 5 December 2011
PDF: 10 pages
Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970Y (5 December 2011); doi: 10.1117/12.904796
Show Author Affiliations
Lituo Liu, Anhui Institute of Optics and Fine Mechanics (China)
Jianguo Liu, Anhui Institute of Optics and Fine Mechanics (China)
Nanjing Zhao, Anhui Institute of Optics and Fine Mechanics (China)
Yin Wang, Anhui Institute of Optics and Fine Mechanics (China)


Published in SPIE Proceedings Vol. 8197:
2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments
Yongtian Wang; Yunlong Sheng; Han-Ping Shieh; Kimio Tatsuno, Editor(s)

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