The distribution of high-quality internal standard lines and its selection method based on Q-value in portable laser-induced breakdown spectroscopy

2021 ◽  
Author(s):  
Jiujiang Yan ◽  
Yating Shi ◽  
Ke Liu ◽  
Hongjun Li ◽  
Zhiyang Tang ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Internal Standard ◽  
Selection Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Internal Standard Method ◽  
Q Value ◽  
Standard Line ◽  
High Quality ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Internal standard line plays a crucial role in the univariate quantitative analysis in portable laser-induced breakdown spectroscopy (LIBS) technology. To overcome the uncertainty of the conventional internal standard method, the...

A fast variable selection method for quantitative analysis of soils using laser-induced breakdown spectroscopy

2017 ◽  
Vol 32 (6) ◽  
pp. 1166-1176 ◽  
Author(s):  
Xiao Fu ◽  
Fa-Jie Duan ◽  
Ting-Ting Huang ◽  
Ling Ma ◽  
Jia-Jia Jiang ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Variable Selection ◽  
Selection Method ◽  
Laser Induced Breakdown Spectroscopy ◽  
Fast Variable ◽  
Breakdown Spectroscopy ◽  
Variable Selection Method ◽  
Laser Induced Breakdown

A fast variable selection method combining iPLS and mIPW-PLS is proposed to reduce the dimensions of the spectrum for LIBS quantitative analysis.

scholarly journals Application of Laser Induced Breakdown Spectroscopy in Soil Element Analysis of Watershed

2018 ◽  
Vol 246 ◽  
pp. 01114
Author(s):  
C. P. Chen ◽  
L. Hei ◽  
S. C. Yu ◽  
W. L. Chen ◽  
M. X. Cai
Keyword(s):  
Quantitative Analysis ◽  
Elemental Analysis ◽  
Matrix Effects ◽  
Rapid Development ◽  
Internal Standard ◽  
Laser Induced Breakdown Spectroscopy ◽  
Element Analysis ◽  
Breakdown Spectroscopy ◽  
Analysis Methods ◽  
Laser Induced Breakdown

With the rapid development of spectroscopy technology, laser induced breakdown spectroscopy (LIBS) has become the focus of elemental analysis technology in recent years. With its advantages of non-destructive testing, rapid and multi-element detection, LIBS has been successfully applied to the analysis of geochemical characteristics of soil elements in river basins. The application of LIBS technology in soil elemental analysis of watershed is reviewed in detail. The accuracy of LIBS technology in soil element analysis is studied with the Masha River Basin as the research area. On this basis, the key problems in the process of soil element analysis, such as spectral enhancement methods and quantitative analysis methods, were analyzed. The analysis results show that the accuracy of elemental analysis between LIBS and traditional chemical methods is not much different, but the analysis time of LIBS method is shorter. Methods such as MLR, PLSR, and internal standard methods can improve the fit of the calibration curve and reduce the quantitative analysis error. By changing parameters such as laser energy and delay time, the spectral intensity can be enhanced to reduce the effects of matrix effects. In the process of elemental analysis, the effects of soil physical and chemical parameters should be considered comprehensively, and appropriate quantitative analysis methods should be adopted to improve the accuracy of the analysis results.

Detection of Carbon in Ferroalloy Using Internal Standard Method Based on LIBS

2011 ◽  
Vol 402 ◽  
pp. 78-81 ◽  
Author(s):  
De Jiang Zhang ◽  
Yu Hang Wang ◽  
Xiao Mei Lin
Keyword(s):  
Quantitative Analysis ◽  
Standard Method ◽  
Internal Standard ◽  
High Energy ◽  
Spectral Lines ◽  
Internal Standard Method ◽  
Temperature Plasma ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
Energy Laser

Using LIBS (laser-induced-breakdown-spectroscopy)technology, element percent in ferroalloy can be measured. High energy laser beam focus on high temperature plasma of ferroalloy surface, using fiber spectrometer detected plasma emission spectral lines in the cooling process to determine the type and content in the ferroalloy elements. In the application of quantitative analysis internal standard method in ferroalloy C content, according to the measuring principle built experimental platform, according to Fe for internal standard elements, setting up the calibration curve of C content, and using the curves to ferroalloy samples in a quantitative analysis on the C element. The results show, LIBS internal standard method to determine the relative error of the ferroalloy C content for no more than 10%, verifying the internal standard method used in the determination of the elements in ferroalloy feasibility.

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