基于腔体约束激光诱导击穿铝土矿光谱的参数优化

Yanwei, 杨彦伟 Yang; Xiaojian, 郝晓剑 Hao; Baowu, 潘保武 Pan; Ruizhong, 张瑞忠 Zhang; Yekun, 刘烨坤 Liu; Peng, 孙鹏 Sun; Wenyuan, 郝文渊 Hao

doi:10.3788/irla20210661

红外与激光工程

2022

DOI: 10.3788/irla20210661

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基于腔体约束激光诱导击穿铝土矿光谱的参数优化

杨彦伟 Yang Yanwei¹,

郝晓剑 Hao Xiaojian²,

潘保武 Pan Baowu³

et al.

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Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Wang

et al. 2023

Meas. Sci. Technol.

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To effectively improve the quality of laser-induced plasma spectra and the detection accuracy of laser-induced breakdown spectroscopy simultaneously for Sr element in soil, the dual mechanism of N2 atmosphere combined with cylindrical cavity confinement for laser-induced Sr plasma emission enhancement was proposed and investigated in this paper, and a multi-spectral fusion internal standard analysis model was established. Optimum enhancement effect can be achieved under the conditions of 2 mm diameter and 6 mm height of the confinement cavity in N2 atmosphere, where the enhancement factor was about 3.25, the signal-to-noise ratio reached 710.28, and the LIBS spectrum quality was the best; the relative standard deviation value (2.64%) was the smallest, and the LIBS signal reproducibility was the best. For the samples in this study, the limit of detection of the sample Sr elements under the dual enhancement mechanism was 39.57 mg/kg, which was 41.07% lower than the LOD without enhancement mechanism (67.19 mg/kg), and the R2 of the multispectral fusion internal standard model was 12.14% higher and the relative error was 3.42% lower than that of the internal standard method. The results showed that the dual enhancement mechanism combining N2 atmosphere and cylindrical cavity confinement improved the spectral quality, signal reproducibility, and detection sensitivity.

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Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Wang

et al. 2023

Meas. Sci. Technol.

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基于腔体约束激光诱导击穿铝土矿光谱的参数优化

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Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

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基于腔体约束激光诱导击穿铝土矿光谱的参数优化

Cited by 1 publication

References 0 publications

Double-enhanced LIBS system with N2 atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Double-enhanced LIBS system with N2 atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Contact Info

Product

Resources

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Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil

Double-enhanced LIBS system with N₂ atmosphere and cylindrical cavity confinement for quantitative analysis of Sr element in soil