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| 8. |  | LEME, A. B. P. Os fatores geograficos na economia do Brasil. B. Geogr., Rio de Janeiro, v.3, n.26, p.207-219, maio 1945. Transcrito de Revue de l'Amerique Latine, v.17 e v.18, n.90, jun., jul. 1929.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 8 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste; Embrapa Solos. |
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Data corrente: |
01/04/2014 |
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Data da última atualização: |
06/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
LEME, A. B. P.; BIANCHI, S. R.; CARNEIRO, R. L.; NOGUEIRA, A. R. A. |
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Afiliação: |
Ana B. P. Leme; SILMARA ROSSANA BIANCHI, CNPS; Renato L. Carneiro; Ana R. A. Nogueira. |
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Título: |
Optimization of sample preparation in the determination of minerals and trace elements in Honey by ICP-MS. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Food Analytical Methods, v. 7, p. 1009-1015, 2014. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Abstract In this paper, analytical procedures are proposed for determination of inorganic constituents in honey samples from different regions of Brazil. Inductively coupled plasma with mass spectrometry detection (ICP-MS) was used to determine the analytes, using two different sample preparation methods: acid mineralization in block digester and microwave-assisted acid digestion. The methods were optimized in order to minimize the final acidity and the residual carbon content after the sample preparation. It was observed that mineralization using microwave radiation with 2 mol L−1 HNO3 was the most suitable method for determination of minerals and trace elements by ICP-MS. Besides, Se, Mg, Ca, Al, P, Mn, Fe, Cu, Zn, Ba, and Pb were determined in 60 honey samples by ICP-MS. The appropriate instrumental conditions were also evaluated for this determination, as the need of the use of collision?reaction interface and internal standards. The accuracies were evaluated using two certified reference materials, and the recoveries ranged from 82 to 115 %. The results showed no evidence of contamination in the honey samples analyzed. |
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Palavras-Chave: |
ICP-MS; Multiple-response optimization; Sample preparationmethods; Sample prepartion methods; Trace element. |
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Thesaurus NAL: |
honey; trace elements. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
W Química e Física |
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Marc: |
LEADER 01863naa a2200241 a 4500
001 1983728
005 2015-01-06
008 2014 bl --- 0-- u #d
100 1 $aLEME, A. B. P.
245 $aOptimization of sample preparation in the determination of minerals and trace elements in Honey by ICP-MS.
260 $c2014
520 $aAbstract In this paper, analytical procedures are proposed for determination of inorganic constituents in honey samples from different regions of Brazil. Inductively coupled plasma with mass spectrometry detection (ICP-MS) was used to determine the analytes, using two different sample preparation methods: acid mineralization in block digester and microwave-assisted acid digestion. The methods were optimized in order to minimize the final acidity and the residual carbon content after the sample preparation. It was observed that mineralization using microwave radiation with 2 mol L−1 HNO3 was the most suitable method for determination of minerals and trace elements by ICP-MS. Besides, Se, Mg, Ca, Al, P, Mn, Fe, Cu, Zn, Ba, and Pb were determined in 60 honey samples by ICP-MS. The appropriate instrumental conditions were also evaluated for this determination, as the need of the use of collision?reaction interface and internal standards. The accuracies were evaluated using two certified reference materials, and the recoveries ranged from 82 to 115 %. The results showed no evidence of contamination in the honey samples analyzed.
650 $ahoney
650 $atrace elements
653 $aICP-MS
653 $aMultiple-response optimization
653 $aSample preparationmethods
653 $aSample prepartion methods
653 $aTrace element
700 1 $aBIANCHI, S. R.
700 1 $aCARNEIRO, R. L.
700 1 $aNOGUEIRA, A. R. A.
773 $tFood Analytical Methods$gv. 7, p. 1009-1015, 2014.
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Embrapa Solos (CNPS) |
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