Quantitative analysis of phosphorus in steel using Laser-induced breakdown spectroscopy in air atmosphere

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	Quantitative analysis of phosphorus in steel using Laser-induced breakdown spectroscopy in air atmosphere
	C. M. Li; Z. M. Zou; X. Y. Yang; Z. Q. Hao; L. B. Guo; X. Y. Li; Y. F. Lu; X. Y. Zeng
	2014
发表期刊	Journal of Analytical Atomic Spectrometry
ISSN	0267-9477
卷号	29 期号:8 页码:1432-1437
摘要	The quantitative analysis of phosphorus in iron/steel in air atmosphere is considered a challenge for laser-induced breakdown spectroscopy (LIBS) due to strong interference from the matrix. In this study, interference from the iron and copper lines on the P I 214.91 nm line using different gate delays was studied. The interference on the P I 214.91 nm tine arises mainly from the ionic tines of iron and copper in the steel. By choosing the gate delays carefully, the interference can be reduced. The spectral resolution and sensitivity of the spectrometer required for the detection of the P 1 214.91 nm line in steel plasma were also studied. Based on the results, a Czerny-Turner spectrometer equipped with an intensified charge coupled device camera with a minimum spectral resolution of 0.03 nm is suggested for this application. Finally, the successful quantitative analysis of phosphorus in the UV-vis spectral range was carried out both in pig iron and a low alloy steel. For the pig iron, the R-2 calibration factor was 0.9992, the limit-of-detection (LoD) was 12 ppm and the background equivalent concentration (BEC) was 0.11 wt%. For the low alloy steel, the R-2 calibration factor was 0.995, the LoD was 9 ppm and the BEC was 0.05 wt%. Interference from copper lines on the P I 214.91 nm line was not observed. It has been shown that a simple LIBS setup can be used for the accurate quantitative analysis of phosphorus in iron/low alloy steel in open air.
部门归属	[li, chang mao ; yang, xin yan ; hao, zhong qi ; guo, lian bo ; li, xiang you ; lu, yong feng ; zeng, xiao yan] huazhong univ sci & technol, wnlo, wuhan 430074, hubei, peoples r china. [zou, zhi min] chinese acad sci, inst met res, shenyang 110016, peoples r china. ; li, xy (reprint author), huazhong univ sci & technol, wnlo, wuhan 430074, hubei, peoples r china. ; xyli@mail.hust.edu.cn
关键词	Vacuum-ultraviolet Sensor Technology Libs Spectrometry Industry
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73262
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. M. Li,Z. M. Zou,X. Y. Yang,et al. Quantitative analysis of phosphorus in steel using Laser-induced breakdown spectroscopy in air atmosphere[J]. Journal of Analytical Atomic Spectrometry,2014,29(8):1432-1437.
APA	C. M. Li.,Z. M. Zou.,X. Y. Yang.,Z. Q. Hao.,L. B. Guo.,...&X. Y. Zeng.(2014).Quantitative analysis of phosphorus in steel using Laser-induced breakdown spectroscopy in air atmosphere.Journal of Analytical Atomic Spectrometry,29(8),1432-1437.
MLA	C. M. Li,et al."Quantitative analysis of phosphorus in steel using Laser-induced breakdown spectroscopy in air atmosphere".Journal of Analytical Atomic Spectrometry 29.8(2014):1432-1437.