Application of Stand-off Double-Pulse Laser-Induced Breakdown Spectroscopy in Elemental Analysis of Magnesium Alloy

Qi, Lifeng; Sun, Lanxiang; Xin, Yong; Cong, Zhaotong; Li, Yang; Yu, Haibin

doi:10.1088/1009-0630/17/8/11

Cited by 12 publications

(4 citation statements)

References 38 publications

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“…Moreover, signal variability decreased for the double pulse approach. Recent studies also support the double-pulse regime as the best choice for the stand-off analysis of steel melt 50 or magnesium alloys, 51 among others.…”

Section: Stand-off Libs Set-upmentioning

confidence: 89%

Distinction strategies based on discriminant function analysis for particular steel grades at elevated temperature using stand-off LIBS

Delgado

Ruiz

Cabalı́n

et al. 2016

J. Anal. At. Spectrom.

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Section: Stand-off Libs Set-upmentioning

confidence: 89%

Distinction strategies based on discriminant function analysis for particular steel grades at elevated temperature using stand-off LIBS

Delgado

Ruiz

Cabalı́n

et al. 2016

J. Anal. At. Spectrom.

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“…Laser-induced breakdown spectroscopy (LIBS) is an atomic emission spectroscopy technique with the advantages of in situ, real-time, rapid, and simultaneous multi-element detection [ 7 , 8 ]. The LIBS technique is applied in various fields, such as biological tissue detection [ 9 , 10 , 11 ], explosives detection [ 12 , 13 , 14 ], coal analysis [ 15 , 16 , 17 ], polymer identification analysis [ 18 , 19 , 20 ], food analysis [ 21 , 22 , 23 ], alloy analysis [ 24 , 25 , 26 ], ore identification analysis [ 27 , 28 , 29 ], and soil element detection [ 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid Test for Adulteration of Fritillaria Thunbergii in Fritillaria Cirrhosa by Laser-Induced Breakdown Spectroscopy

Wei

Teng

Wang

et al. 2023

Foods

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Fritillaria has a long history in China, and it can be consumed as medicine and food. Owing to the high cost of Fritillaria cirrhosa, traders sometimes mix it with the cheaper Fritillaria thunbergii powder to make profit. Herein, we proposed a laser-induced breakdown spectroscopy (LIBS) technique to test the adulteration present in the sample of Fritillaria cirrhosa powder. Experimental samples with different adulteration levels were prepared, and their LIBS spectra were obtained. Partial least squares regression (PLSR) was adopted as the quantitative analysis model to compare the effects of four data standardization methods, namely, mean centring, normalization by total area, standard normal variable, and normalization by the maximum, on the performance of the PLSR model. Principal component analysis and least absolute shrinkage and selection operator (LASSO) were utilized for feature extraction and feature selection, and the performance of the PLSR model was determined based on its quantitative analysis. Subsequently, the optimal number of features was determined. The residuals were corrected using support vector regression (SVR). The mean absolute error and root mean square error of prediction obtained from the quantitative analysis results of the combined LASSO-PLSR-SVR model for the test set data were 5.0396% and 7.2491%, respectively, and the coefficient of determination R2 was 0.9983. The results showed that the LIBS technique can be adopted to test adulteration in the sample of Fritillaria cirrhosa powder and has potential applications in drug quality control.

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“…Laser-induced breakdown spectroscopy (LIBS) is a newly emerging optical detection method with the advantages of rapid, simultaneous monitoring of multi-elements, high temporal and spatial resolution, etc., and has been applied in a wide variety of fields, such as biomedicine, [12][13][14][15] cultural heritage and archaeology, [16][17][18] metallurgical analysis, [19][20][21] agricultural materials, [22][23][24][25] and so on. Recently, it has also been used for combustion diagnosis, including solid fuel combustion [26][27][28] and gas fuel combustion.…”

Section: Introductionmentioning

confidence: 99%

Laser-Induced Breakdown Spectroscopy (LIBS) For The Characterization Of Methane-Air Laminar Diffusion Flame

Rao¹,

Dong²,

Nie³

et al. 2021

At.Spectrosc.

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Laser-induced breakdown spectroscopy (LIBS) was applied for the characterization of the methane-air laminar diffusion flame, revealing the spatial distribution of its composition. From the measurement, it was found that distribution of the atomic and ionic N emissions produced by the flame had obvious differences, which were mainly distributed in the air area and flame area, respectively. A comparison of the LIBS spectra of air, methane gas, and methane-air laminar diffusion flame showed that the atomic N emissions were mainly produced by the excitation of N2, and the ionic N emissions were more related to the N-containing combustion products. In addition, the correlation between typical emissions and the flame temperature measured by thermocouple was estimated to show that the tendency of the changes in temperature can be characterized by C2 emission intensities. This work provides a new method for real-time online flame temperature measurement, and also provides a reference for revealing the formation process and conversion pathway of each component in the flame.

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Application of Stand-off Double-Pulse Laser-Induced Breakdown Spectroscopy in Elemental Analysis of Magnesium Alloy

Cited by 12 publications

References 38 publications

Distinction strategies based on discriminant function analysis for particular steel grades at elevated temperature using stand-off LIBS

Distinction strategies based on discriminant function analysis for particular steel grades at elevated temperature using stand-off LIBS

Rapid Test for Adulteration of Fritillaria Thunbergii in Fritillaria Cirrhosa by Laser-Induced Breakdown Spectroscopy

Laser-Induced Breakdown Spectroscopy (LIBS) For The Characterization Of Methane-Air Laminar Diffusion Flame

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