Abstract:In view of the lack of mature and commercial portable laser-induced breakdown spectroscopy (LIBS) instruments in China, and the poor spectral stability and anti-interference performance of the existing portable LIBS analyzer, a new compact and integrated portable LIBS instrument was developed successfully. With this instrument, the classification of 24 kinds of metallic ores and the accurate quantitative analysis of Cr, Ni, Si, Cu, Ti, and V in microalloy steel samples were achieved successfully. Among them, the average classification accuracy of 24 metallic ores reached 95.83%. The determination coefficient (R2) of the quantitative analysis model of each element reached 0.993, 0.984, 0.996, 0.990, 0.980, and 0.999, the limits of detection (LODs) reached 0.0355%, 0.0587%, 0.0773%, 0.0120%, 0.0085% and 0.0082%, and the average relative error of cross-validations (ARECVs) reached 5.20%, 11.30%, 18.18%, 9.63%, 9.73%, and 9.17%, respectively. The results showed that as-developed instrument had good qualitative and quantitative analysis performance, which provided a new solution for the localization of portable LIBS instruments.
闫久江, 李祥友. 新型便携式激光诱导击穿光谱仪器及其应用研究[J]. 冶金分析, 2020, 40(12): 66-71.
YAN Jiu-jiang, LI Xiang-you. Research on a new portable laser-induced breakdown spectroscopy system and its application. , 2020, 40(12): 66-71.
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