title: [Research on accurate measurement of oxygen content in coal using laser-induced breakdown spectroscopy in air environment].
abstract: A technique about accurate measurement of oxygen content in coal in air environment using laser-induced breakdown spectroscopy (LIBS) is introduced in the present paper. Coal samples were excited by the laser, and plasma spectra were obtained. Combining internal standard method, temperature correction method and multi-line methods, the oxygen content of coal samples was precisely measured. The measurement precision is not less than 1.37% for oxygen content in coal analysis, so is satisfied for the requirement of coal-fired power plants in coal analysis. This method can be used in surveying, environmental protection, medicine, materials, archaeological and food safety, biochemical and metallurgy application.
authors.affiliation: College of Physics and Electronics Engineering, Shanxi University, State Key Laboratory of Quantum Optics and Quantum Optics Devices, Taiyuan 030006, China. ywb65@sxu.edu.cn
authors.forename: Wang-bao
authors.initials: WB
authors.lastname: Yin
authors.forename: Lei
authors.initials: L
authors.lastname: Zhang
authors.forename: Le
authors.initials: L
authors.lastname: Wang
authors.forename: Lei
authors.initials: L
authors.lastname: Dong
authors.forename: Wei-guang
authors.initials: WG
authors.lastname: Ma
authors.forename: Suo-tang
authors.initials: ST
authors.lastname: Jia