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An Image Auxiliary Method for Quantitative Analysis of Laser-Induced Breakdown Spectroscopy
Zhang P(张鹏)1,2,3; Sun LX(孙兰香)1,3; Yu HB(于海斌)1,3; Zeng P(曾鹏)1,3; Qi LF(齐立峰)1,3; Xin Y(辛勇)1,2,3
作者部门工业控制网络与系统研究室
发表期刊Analytical Chemistry
ISSN0003-2700
2018
卷号90期号:7页码:4686-4694
收录类别SCI ; EI
EI收录号20181504995731
WOS记录号WOS:000429385800062
产权排序1
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Key Research Program of Frontier Sciences CAS ; Youth Innovation Promotion Association CAS
摘要

Improving both the stability and accuracy of laser-induced breakdown spectroscopy (LIBS) is an issue in quantitative analysis. For certain environments outside of the laboratory, consistently and exactly maintaining the distance from the optical system to the sample surface is difficult, and fluctuations of this distance severely affect the stability of the spectrum. In this work, the principal components of the plasma images are extracted and used to correct the spectral line intensities as an auxiliary method to reduce spectral fluctuation. The presented image auxiliary method is combined with univariate analysis and multivariate analysis, and the element concentrations of Cu, Mn, V, and Cr in steel samples are analyzed. For univariate analysis, all the determination coefficients (R2) of the four elements exceed 0.99, whereas the average relative standard deviations (RSDs) of the intensities decrease from 30.45, 23.14, 27.03, and 22.04%, to 2.13, 3.38, 2.49, and 3.58%, respectively. For the multivariate analysis, the R2values for Cu, Mn, V, and Cr also all exceed 0.99, and the average RSDs of the predicted concentrations of the validation samples decrease to 2.87, 3.82, 2.86, and 6.51%, respectively.

其他摘要

ANCHAM

语种英语
WOS类目Chemistry, Analytical
关键词[WOS]SPECTRUM STANDARDIZATION ; LIBS ; PLASMA ; TIME ; NORMALIZATION ; SPECTROMETRY ; EMPHASIS ; CARBON ; SIGNAL ; MODEL
WOS研究方向Chemistry
资助项目National Natural Science Foundation of China[61473279] ; National Key Research and Development Program of China[2016YFF0102502] ; Key Research Program of Frontier Sciences CAS[QYZDJ-SSW-JSC037] ; Youth Innovation Promotion Association CAS
引用统计
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/21899
专题工业控制网络与系统研究室
通讯作者Sun LX(孙兰香)
作者单位1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China;
2.University of Chinese, Academy of Sciences, Beijing 100049, China;
3.Key Laboratory of Networked Control System, Chinese Academy of Sciences, Shenyang 110016, China
推荐引用方式
GB/T 7714
Zhang P,Sun LX,Yu HB,et al. An Image Auxiliary Method for Quantitative Analysis of Laser-Induced Breakdown Spectroscopy[J]. Analytical Chemistry,2018,90(7):4686-4694.
APA Zhang P,Sun LX,Yu HB,Zeng P,Qi LF,&Xin Y.(2018).An Image Auxiliary Method for Quantitative Analysis of Laser-Induced Breakdown Spectroscopy.Analytical Chemistry,90(7),4686-4694.
MLA Zhang P,et al."An Image Auxiliary Method for Quantitative Analysis of Laser-Induced Breakdown Spectroscopy".Analytical Chemistry 90.7(2018):4686-4694.
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