Optimization of laser induced breakdown spectroscopy system by neurogenetic method for multi-elemental analysis of heavy metals in soil

Lituo Liu; Jianguo Liu; Nanjing Zhao; Yin Wang

doi:10.1117/12.904796

5 December 2011 Optimization of laser induced breakdown spectroscopy system by neurogenetic method for multi-elemental analysis of heavy metals in soil

Lituo Liu, Jianguo Liu, Nanjing Zhao, Yin Wang

Author Affiliations +

Proceedings Volume 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments; 81970Y (2011) https://doi.org/10.1117/12.904796
Event: International Conference on Optical Instruments and Technology (OIT2011), 2011, Beijing, Beijing, China

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.

Citation Download Citation

Lituo Liu, Jianguo Liu, Nanjing Zhao, and Yin Wang "Optimization of laser induced breakdown spectroscopy system by neurogenetic method for multi-elemental analysis of heavy metals in soil", Proc. SPIE 8197, 2011 International Conference on Optical Instruments and Technology: Optical Systems and Modern Optoelectronic Instruments, 81970Y (5 December 2011); https://doi.org/10.1117/12.904796

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