Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1154795
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dc.contributor.authorGUEDES, W. N.
dc.contributor.authorBABOS, D. V.
dc.contributor.authorCOSTA, V. C.
dc.contributor.authorMORAIS, C. P de
dc.contributor.authorFREITAS, V. S.
dc.contributor.authorSTENIO, K.
dc.contributor.authorXAVIER, A. A. P.
dc.contributor.authorBORDUCHI, L. C. L.
dc.contributor.authorVILLAS-BOAS, P. R.
dc.contributor.authorMILORI, D. M. B. P.
dc.date.accessioned2023-07-04T20:24:01Z-
dc.date.available2023-07-04T20:24:01Z-
dc.date.created2023-07-04
dc.date.issued2023
dc.identifier.citationJournal of the Optical Society of America B, v. 40, n. 5, 2023.
dc.identifier.issn0740-3224
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1154795-
dc.descriptionThe correct choice of the calibration strategy method is a step that can ensure the accuracy of carbon determination in soils by laser-induced breakdown spectroscopy. In this paper, we evaluate and discuss the intrinsic characteristics of univariate and multivariate calibration strategies in overcoming soil matrix effects and their influence on the magnitude of calibration and prediction error values. The matrix-matching calibration with previous correction of Al spectral interference in the C I line at 193.03 nm was the best strategy of the 13 univariate models evaluated [root-mean-square error of calibration?(RMSEP) = 0.2 wt.% C]. In the multivariate evaluation of the 22 models obtained, the artificial neural network allowed obtaining a lower value of prediction error for C (RMSEP = 0.1 wt.% C) with very good accuracy (98%) for the set samples of validation. The observation of these results was justified considering the advantages and limitations of each calibration strategy explored.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectAccuracy of carbon
dc.subjectLaser-induced breakdown spectroscopy
dc.titleEvaluation of univariate and multivariate calibration strategies for the direct determination of total carbon in soils by laser-induced breakdown spectroscopy: tutorial.
dc.typeArtigo de periódico
dc.format.extent21319 - 1330
riaa.ainfo.id1154795
riaa.ainfo.lastupdate2023-07-04
dc.identifier.doihttps://doi.org/10.1364/JOSAB.482644
dc.contributor.institutionUNIVERSIDADE DE SÃO PAULO
dc.contributor.institutionPAULINO RIBEIRO VILLAS BOAS, CNPDIAeng
dc.contributor.institutionDEBORA MARCONDES BASTOS PEREIRA, CNPDIA.eng
Appears in Collections:Artigo em periódico indexado (CNPDIA)

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