Spectroscopy and Spectral Analysis, Volume. 37, Issue 4, 1254(2017)
Quantitative Analysis of Manganese in Low Alloy Steel with Micro-Laser-Induced Breakdown Spectroscopy
Manganese in the low alloy steel was analyzed quantitatively using micro-laser-induced breakdown spectroscopy. The spatial resolution of 20 μm and the single pulse limit of detection of 0.10% were obtained. The calibration curve of Mn was established with basic calibration method, with determination coefficient (R2) of 0.97. The average relative error of Mn concentration prediction on 7 samples is 12.91%, and the root-mean-square error of cross-validation (RMSECV) is 0.11%. The R2 reaches 0.99 when using internal calibration method, as well as the average relative error of Mn concentration prediction on 7 samples and RMSECV were decreased to 7.25% and 0.07%, respectively. These results show that MicroLIBS technique is an effective approach for material surfaces quantitative microanalysis.
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WANG Xu-zhao, AO Zhong-qi, GUO Lian-bo, LI Xiang-you, ZENG Xiao-yan, LU Yong-feng. Quantitative Analysis of Manganese in Low Alloy Steel with Micro-Laser-Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2017, 37(4): 1254
Received: Jul. 11, 2014
Accepted: --
Published Online: Jun. 20, 2017
The Author Email: Xu-zhao WANG (xzwang@hust.edu.cn)