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1. | | BROWN, G. G.; SENAPATI, B. K.; PASHANASI, B.; VILANAVE, C.; PATRÓN IBARRA, J. C.; LAVELLE, P.; BAROIS, I.; BLAKEMORE, R. J. Earthworms stimulate plant production. In: BROWN, G. G.; FRAGOSO GONZÁLEZ, C. (Ed.). Minhocas na América Latina: biodiversidade e ecologia. Londrina: Embrapa Soja, 2007. Biblioteca(s): Embrapa Florestas. |
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Registros recuperados : 1 | |
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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
Data corrente: |
14/06/2011 |
Data da última atualização: |
25/07/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
FERREIRA, E. C.; MILORI, D. M. B. P.; FERREIRA, E. J.; SANTOS, L. M. dos; MARTIN NETO, L.; NOGUEIRA, A. R. de A. |
Afiliação: |
EDILENE CRISTINA FERREIRA, UFSCar/SÃO CARLOS, SP; DEBORA MARCONDES BASTOS P MILORI, CNPDIA; EDNALDO JOSE FERREIRA, CNPDIA; LARISSA MACEDO DOS SANTOS, UFSCAR/SÃO CARLOS, SP; LADISLAU MARTIN NETO, CNPDIA; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
Título: |
Evaluation of laser induced breakdown spectroscopy for multielemental determination in soils under sewage sludge application. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
Talanta, v. 85, n. 1, p. 435-440, jul. 2011. |
DOI: |
https://doi.org/10.1016/j.talanta.2011.04.001 |
Idioma: |
Inglês |
Conteúdo: |
Laser induced breakdown spectroscopy (LIBS) is an atomic emission spectroscopy technique for simple, direct and clean analysis, with great application potential in environmental sustainability studies. In a single LIBS spectrum it is possible to obtain qualitative information on the sample composition. However, quantitative analysis requires a reliable model for analytical calibration. Multilayer perceptron (MLP), an artificial neural network, is a multivariate technique that is capable of learning to recognize features from examples. Therefore MLP can be used as a calibration model for analytical determinations. Accordingly, the present study proposes to evaluate the traditional linear fit and MLP models for LIBS calibration, in order to attain a quantitative multielemental method for contaminant determination in soil under sewage sludge application. Two sets of samples, both composed of two kinds of soils were used for calibration and validation, respectively. The analyte concentrations in these samples, used as reference, were determined by a reference analytical method using inductively coupled plasma optical emission spectrometry (ICP OES). The LIBS?MLP was compared to a LIBS?linear fit method. The values determined by LIBS?MLP showed lower prediction errors, correlation above 98% with values determined by ICP OES, higher accuracy and precision, lower limits of detection and great application potential in the analysis of different kinds of soils. |
Palavras-Chave: |
Breakdown spectroscopy; Calibração; Determinação Multielemental; Espectroscopia de ruptura induzida por laser; Laser induced; Laser induced breakdown spectroscopy; Multielemental determination; Multilayer perceptron; Perceptron multicamada. |
Thesagro: |
Solo. |
Thesaurus NAL: |
Calibration; Soil. |
Categoria do assunto: |
-- W Química e Física |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/36327/1/PROCI2011.00029.pdf
|
Marc: |
LEADER 02582naa a2200337 a 4500 001 1891339 005 2022-07-25 008 2011 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.talanta.2011.04.001$2DOI 100 1 $aFERREIRA, E. C. 245 $aEvaluation of laser induced breakdown spectroscopy for multielemental determination in soils under sewage sludge application.$h[electronic resource] 260 $c2011 520 $aLaser induced breakdown spectroscopy (LIBS) is an atomic emission spectroscopy technique for simple, direct and clean analysis, with great application potential in environmental sustainability studies. In a single LIBS spectrum it is possible to obtain qualitative information on the sample composition. However, quantitative analysis requires a reliable model for analytical calibration. Multilayer perceptron (MLP), an artificial neural network, is a multivariate technique that is capable of learning to recognize features from examples. Therefore MLP can be used as a calibration model for analytical determinations. Accordingly, the present study proposes to evaluate the traditional linear fit and MLP models for LIBS calibration, in order to attain a quantitative multielemental method for contaminant determination in soil under sewage sludge application. Two sets of samples, both composed of two kinds of soils were used for calibration and validation, respectively. The analyte concentrations in these samples, used as reference, were determined by a reference analytical method using inductively coupled plasma optical emission spectrometry (ICP OES). The LIBS?MLP was compared to a LIBS?linear fit method. The values determined by LIBS?MLP showed lower prediction errors, correlation above 98% with values determined by ICP OES, higher accuracy and precision, lower limits of detection and great application potential in the analysis of different kinds of soils. 650 $aCalibration 650 $aSoil 650 $aSolo 653 $aBreakdown spectroscopy 653 $aCalibração 653 $aDeterminação Multielemental 653 $aEspectroscopia de ruptura induzida por laser 653 $aLaser induced 653 $aLaser induced breakdown spectroscopy 653 $aMultielemental determination 653 $aMultilayer perceptron 653 $aPerceptron multicamada 700 1 $aMILORI, D. M. B. P. 700 1 $aFERREIRA, E. J. 700 1 $aSANTOS, L. M. dos 700 1 $aMARTIN NETO, L. 700 1 $aNOGUEIRA, A. R. de A. 773 $tTalanta$gv. 85, n. 1, p. 435-440, jul. 2011.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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