First International Conference on Spatial Atmospheric Marine Environmental Optics (SAME 2023) 2023
DOI: 10.1117/12.2681893
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Quantitative analysis of Cr in soil using laser induced breakdown spectroscopy combined with relevance vector machine method

Abstract: The laser induced breakdown spectroscopy (LIBS) technology coupled with a principal component analysis and relevance vector machine (PCA-RVM) was used for rapidly detect the concentration of heavy metal Cr in soil. The PCA-RVM was obtained by optimizing the relevance vector machine (RVM) with PCA.LIBS spectrum of 14 soil samples with different concentration of elements were collected and used for the model training and prediction. 10 of those were selected as training sample sets to build the PCA-RVM model, an… Show more

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