光学精密工程2024，Vol.32Issue(20)：2999-3005,7.DOI:10.37188/OPE.20243220.2999
激光诱导荧光辅助激光诱导击穿光谱对合金结构钢中Mo的定量分析
Quantitative analysis of Mo in alloy structural steel using laser-induced fluorescence assisted laser-induced breakdown spectroscopy
摘要
Abstract
The content of molybdenum(Mo)element in alloy structural steel has significant effects on its performance,making the detection of Mo content in alloy structural steel of great significance.However,the spectral interference and self-absorption effects of matrix element(Fe)in alloy structural steel severely affect the accuracy of laser-induced breakdown spectroscopy(LIBS)for quantitative analysis of Mo ele-ment.In this work,we employed laser-induced fluorescence-assisted laser-induced breakdown spectrosco-py(LIBS-LIF)to address these issues.We selected three spectral lines,Mo I 379.83 nm,Mo I 386.41 nm,and Mo I 390.30 nm,as the analysis lines.The results showed that LIBS-LIF enhanced the spectral intensities of the three analysis lines,eliminating spectral interferences.As the Mo content increased from 0.019 wt.%to 1.4 wt.%,the spectral intensities of Mo element lines also significantly increased.Com-pared to the traditional LIBS technique,the self-absorption factor of the Mo I 386.41 nm line decreased by 99.99%in LIBS-LIF,the root mean square error of cross-validation decreased by 65.37%,the average relative deviation decreased by 85.69%,and the average relative standard deviation decreased by 20.20%.Therefore,LIBS-LIF can effectively reduce spectral interferences and self-absorption effects,improving the accuracy of quantitative analysis.关键词
激光诱导击穿光谱/激光诱导荧光/合金结构钢/钼元素Key words
laser-induced breakdown spectroscopy/laser-induced fluorescence/alloy structure steel/mo-lybdenum element引用本文复制引用
莫凯峰,唐云,杨泽恩,王胜,郭恩新,廖嘉乐..激光诱导荧光辅助激光诱导击穿光谱对合金结构钢中Mo的定量分析[J].光学精密工程,2024,32(20):2999-3005,7.基金项目
湖南省自然科学基金面上项目(No.2024JJ5166) （No.2024JJ5166）
国家自然科学基金(No.62005078) （No.62005078）
湖南省教育厅科学研究项目(No.21B0477) （No.21B0477）
智能传感器与新型传感材料湖南省重点实验室开放基金项目(No.E22341) （No.E22341）
