激光技术2024，Vol.48Issue(3)：373-378,6.DOI:10.7510/jgjs.issn.1001-3806.2024.03.012
基于自由定标激光诱导击穿光谱的黄铜定量研究
Quantitative study of brass based on calibration-free laser-induced breakdown spectroscopy
摘要
Abstract
In order to realize the rapid quantitative detection of copper and zinc in brass samples,three brass samples were studied by calibration-free laser-induced breakdown spectroscopy(CF-LIBS).Six characteristic spectral lines of copper and four characteristic spectral lines of zinc were selected as the analysis objects.Under the spectrum acquisition modes of a single pulse and an average of 10 pulses,the relative standard deviation(RSD)of characteristic spectral lines of copper and zinc were comparatively analyzed.The results show that under the condition of an average of 10 pulses,the average RSD of copper and zinc is decreased by 8.8%and 12.3%,respectively,compared with the single pulse.The mass fraction of copper and zinc in three brass samples are quantitatively calculated by CF-LIBS,the relative errors between the temperature of copper and zinc and the average plasma temperature are 5.2%,0.9%,and 7.1%,respectively.The relative errors in copper mass fraction in the three samples are 5.6%,0.5%and,1.6%,respectively;The relative errors in zinc mass fraction are 9.2%,2.0%,and 13.3%,respectively.CF-LIBS is expected to provide method support for the rapid and accurate detection of element mass fraction in brass and provide data and technical support for the further development of portable detection equipment for the element mass fraction of alloy samples.关键词
光谱学/激光诱导击穿光谱/自由定标/黄铜Key words
spectroscopy/laser-induced breakdown spectroscopy/calibration-free/brass分类
物理学引用本文复制引用
余洋,吴瑞,兰智高..基于自由定标激光诱导击穿光谱的黄铜定量研究[J].激光技术,2024,48(3):373-378,6.基金项目
光学信息与模式识别湖北省重点实验室开放基金资助项目(202105) （202105）
湖北省自然科学基金资助项目(2018CFC862) （2018CFC862）
