Article (Scientific journals)
Matrix Effect on Laser Induced Breakdown Spectroscopy of Fine Coal
Xie, Chengli; Lu, Jidong; Li, Jie et al.
2008In Kung Cheng Je Wu Li Hsueh Pao, 29 (2), p. 331-334
Peer reviewed
 

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Keywords :
laser—induced breakdown spectroscopy; fine coal; matrix effect; quantitative analysis
Abstract :
[en] The feasibility of laser—induced breakdown spectroscopy as a diagnostic tool for elementary analysis was documented widely,as well as the matrix effect of target material was proved to be remarkable impact on the spectral analysis. The influence of physical characteristics of fine coal,including particle size and area density,on the emission spectrum was surveyed,such as spectral intensity,standard deviation of characteristic spectrum and the detection threshold.An intense laser radiation with a wavelength of 1064 nm was used to ablate fine coal to form plasma plume,and the emission spectrum emitted as the plasma cooling of was analyzed by high—resolution echelle grating spectrometer coupled to intensified CCD camera.The results suggest that moderate particle size and material density are more advantageous to quantitative analysis of coal by laser—induced breakdown spectroscopy than the smallest or biggest size,which can be interpretable by heat—transfer mechanism in target after a shot of laser pulse.
Disciplines :
Energy
Author, co-author :
Xie, Chengli
Lu, Jidong
Li, Jie ;  Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Procédés et développement durable
Li, Yong
Li, Pengyan
Lin, Zhaoxiang
Language :
Chinese
Title :
Matrix Effect on Laser Induced Breakdown Spectroscopy of Fine Coal
Publication date :
2008
Journal title :
Kung Cheng Je Wu Li Hsueh Pao
ISSN :
0253-231X
Publisher :
Kexue Chubaneshe/Science Press, China
Volume :
29
Issue :
2
Pages :
331-334
Peer reviewed :
Peer reviewed
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