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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
09/01/2004 |
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Data da última atualização: |
29/06/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TREVIZAN, L. C.; NOGUEIRA, A. R. de A.; NÓBREGA, J. A. |
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Afiliação: |
LILIAN C. TREVIZAN, Universidade Federal de São Carlos; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOAQUIM A. NÓBREGA, Universidade Federal de São Carlos. |
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Título: |
Single vessel procedure for acid vapor partial digestion of bovine liver in a focused microwave: multielement determination by ICP-OES. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Talanta, v. 61, n. 2, p. 81-86, 2003. |
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DOI: |
10.1016/S0039-9140(03)00220-0 |
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Idioma: |
Inglês |
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Conteúdo: |
An acid vapor partial digestion procedure for bovine liver is proposed using a focused microwave oven and a laboratory-made PTFE support. The support is equipped with three cups of approximately 4 ml volume each one and the cups were adapted to the glass reaction vessel of the microwave oven. A mixture containing HNO3 plus H2SO4 is heated to 120 °C to generate acid vapor. Bovine liver (50?90 mg) were directly weighed into the cups followed by addition of a mixture containing NaClO+H2O2. Samples were exposed to acid vapor during 15?25 min and then diluted with distilled and deionized water to final masses of 3.0 g. Recoveries of Al, Ca, Cu, Fe, Mg, Mn, and Zn were evaluated using an ICP-OES with axially-viewed configuration. The effects of both particle sizes and acid vapor exposure time were evaluated and recoveries of most elements were quantitative when using 25 min of heating and 50 mg of samples. Slightly better recoveries were reached using particles smaller than 44 ?m, but this effect was mainly observed for hardly extracted elements such as Al and Fe. |
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Palavras-Chave: |
Acid vapr; Bovine liver; Focused-microwave; Partial degestion. |
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Thesaurus Nal: |
sodium hypochlorite. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 01776naa a2200217 a 4500
001 1046628
005 2023-06-29
008 2003 bl uuuu u00u1 u #d
024 7 $a10.1016/S0039-9140(03)00220-0$2DOI
100 1 $aTREVIZAN, L. C.
245 $aSingle vessel procedure for acid vapor partial digestion of bovine liver in a focused microwave$bmultielement determination by ICP-OES.$h[electronic resource]
260 $c2003
520 $aAn acid vapor partial digestion procedure for bovine liver is proposed using a focused microwave oven and a laboratory-made PTFE support. The support is equipped with three cups of approximately 4 ml volume each one and the cups were adapted to the glass reaction vessel of the microwave oven. A mixture containing HNO3 plus H2SO4 is heated to 120 °C to generate acid vapor. Bovine liver (50?90 mg) were directly weighed into the cups followed by addition of a mixture containing NaClO+H2O2. Samples were exposed to acid vapor during 15?25 min and then diluted with distilled and deionized water to final masses of 3.0 g. Recoveries of Al, Ca, Cu, Fe, Mg, Mn, and Zn were evaluated using an ICP-OES with axially-viewed configuration. The effects of both particle sizes and acid vapor exposure time were evaluated and recoveries of most elements were quantitative when using 25 min of heating and 50 mg of samples. Slightly better recoveries were reached using particles smaller than 44 ?m, but this effect was mainly observed for hardly extracted elements such as Al and Fe.
650 $asodium hypochlorite
653 $aAcid vapr
653 $aBovine liver
653 $aFocused-microwave
653 $aPartial degestion
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aNÓBREGA, J. A.
773 $tTalanta$gv. 61, n. 2, p. 81-86, 2003.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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| 1. |  | MEDEIROS, E. J. L. de; QUEIROGA, R. de C. R. do E.; MEDEIROS, A. N. de; BOMFIM, M. A. D.; BATISTA, A. S. M.; FÉLEX, S. S. dos S.; MADRUGA, M. S. Sensory profile and physicochemical parameters of cheese from dairy goats fed vegetable oils in the semiarid region of Brazil. Small Ruminant Research, Amsterdam, v. 113, n. 1, p. 211-218, June, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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