Author:
TANG Yun,LI Jingfeng,MA Shixiang,HU Zhenlin,PENG Xuxiang,ZHOU Weiping,YUAN Xiao,SHEN Meng
Abstract
Abstract
The detection of manganese (Mn) in steel by laser-induced breakdown spectroscopy (LIBS) provides essential information for steelmaking. However, self-absorption greatly disrupts the LIBS spectral lines of Mn with high content. In this study, to minimize self-absorption for Mn spectral lines in LIBS, laser-induced fluorescence (LIF) was applied. Compared with conventional LIBS, the self-absorption factors (α) of Mn I 403.08, 403.31, and 403.45 nm lines were reduced by 90%, 88%, and 88%, respectively; the root mean square errors of cross-validation were decreased by 88%, 85%, and 87%, respectively; the average relative errors were reduced by 93%, 90%, and 91%, respectively; and average relative standard deviations were decreased by 29%, 32%, and 33%, respectively. The LIBS-LIF was shown to successfully minimize the self-absorption effect and spectral intensity fluctuation and improve detection accuracy.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Hunan Province
Scientific Research Foundation of Hunan Provincial Education Department
Cited by
4 articles.
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