[en] The purpose of this work is to improve the precision of the elemental analysis of coal using laser-induced breakdown spectroscopy (LIBS). The LIBS technique has the ability to allow simultaneous
elemental analysis and on-line determination, so it could be used in the elemental analysis of coal. Organic components such as C, H, O, N and inorganic components such as Ca, Mg, Fe, Al, Si, Ti, Na, and K of coal have been identified. The precision of the LIBS technique depends strongly on the experimental conditions, and the choice of experimental parameters should be aimed at optimizing the repeatability of the measurements. The dependences of the relative standard deviation (RSD) of the LIBS measurements on the experimental parameters including the sample preparation parameters, lens-to-sample distance, sample operation mode, and ambient gas have been investigated. The results indicate that the precision of LIBS measurements for the coal sample can be improved by using the optimum experimental parameters.
Research center :
Huazhong University of Science and Technology
Disciplines :
Energy
Author, co-author :
Li, Jie ; Université de Liège - ULiège > Département de chimie appliquée > Génie chimique - Procédés et développement durable
Lu, Jidong
Lin, Zhaoxiang
Gong, Shunsheng
Xie, Chengli
Chang, Liang
Yang, Lifei
Li, Pengyan
Language :
English
Title :
Effects of experimental parameters on elemental analysis of coal by laser-induced breakdown spectroscopy
Publication date :
2009
Journal title :
Optics and Laser Technology
ISSN :
0030-3992
Publisher :
Elsevier Science
Volume :
41
Issue :
8
Pages :
907-913
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
National Natural Science Foundation of China (No.50576029) National Natural Science Foundation of China (No.50846041)
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