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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
Department工业控制网络与系统研究室
Source PublicationAnalytical Chemistry
ISSN0003-2700
2018
Volume90Issue:7Pages:4686-4694
Indexed BySCI ; EI
EI Accession number20181504995731
WOS IDWOS:000429385800062
Contribution Rank1
Funding OrganizationNational 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
Abstract

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.

Other Abstract

ANCHAM

Language英语
WOS SubjectChemistry, Analytical
WOS KeywordSPECTRUM STANDARDIZATION ; LIBS ; PLASMA ; TIME ; NORMALIZATION ; SPECTROMETRY ; EMPHASIS ; CARBON ; SIGNAL ; MODEL
WOS Research AreaChemistry
Funding ProjectNational 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
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Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21899
Collection工业控制网络与系统研究室
Corresponding AuthorSun LX(孙兰香)
Affiliation1.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
Recommended Citation
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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