Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080667
Título: Laser-induced breakdown spectroscopy associated with multivariate analysis applied to discriminate fertilizers of different nature.
Autoria: SENESI, G. S.
ROMANO, R. A.
MARANGONI, B. S.
NICOLODELLI, G.
VILLAS-BOAS, P. R.
BENITES, V. de M.
MILORI, D. M. B. P.
Afiliação: PAULINO RIBEIRO VILLAS BOAS, CNPDIA
CNPDIA
DEBORA MARCONDES BASTOS PEREIRA, CNPDIA.
Ano de publicação: 2017
Referência: Journal of Applied Spectroscopy, v. 84, n. 5, p. 923-928, 2017.
Conteúdo: A number of phosphate rocks and organomineral P fertilizers was analyzed comparatively by laser-induced breakdown spectroscopy (LIBS) in both single- and double-pulse modes associated with two chemometric methods, i.e., principal components analysis (PCA) and partial least squares regression (PLSR). PCA was demonstrated to be a valuable method for the identifi cation of spectral differences between similar samples with only minor compositional differences. The raw and normalized LIBS spectra were able to provide effective identifi cation and discrimination at a 95% confi dence level and in good agreement with the reference concentrations. Results obtained confi rm the promising potential of LIBS for the rapid classifi cation of P fertilizers in situ.
Palavras-chave: Laser-induced breakdown spectroscopy
Phosphate rocks
Organomineral fertilizers
Principal components analysis
Partial least squares regression
ISSN: 0021-9037
Digital Object Identifier: 10.1007/s10812-017-0566-4
Tipo do material: Artigo de periódico
Acesso: openAccess
Aparece nas coleções:Artigo em periódico indexado (CNPDIA)

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