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| 1. |  | SILVA, F. A.; PADILHA, C. C. F.; CASTRO, G. R. de; ROLDAN, P. dos S.; NOGUEIRA, A. R. de A.; MORAES, P. M.; PADILHA, P. M. Selenium determination in tissue samples of Nile tilapia using ultrasound-assisted extraction. Central European Journal of Chemistry, v. 9, n. 1, p. 119-125, 2011.| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 1 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
30/12/2010 |
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Data da última atualização: |
26/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 4 |
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Autoria: |
SILVA, F. A.; PADILHA, C. C. F.; CASTRO, G. R. de; ROLDAN, P. dos S.; NOGUEIRA, A. R. de A.; MORAES, P. M.; PADILHA, P. M. |
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Afiliação: |
FABIO A. SILVA, UNESP/JABOTICABAL; CILENE C. F. PADILHA, UNESP/BOTUCATU; GUSTAVO R. DE CASTRO, UFAL/MACEIÓ; PAULO DOS SANTOS ROLDAN, UFSCar/SÃO CARLOS, SP; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; PAULA M. MORAES, UNESP/BOTUCATU; PEDRO M. PADILHA, UNICAMP/CAMPINAS. |
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Título: |
Selenium determination in tissue samples of Nile tilapia using ultrasound-assisted extraction. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Central European Journal of Chemistry, v. 9, n. 1, p. 119-125, 2011. |
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DOI: |
10.2478/s11532-010-0121-0 |
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Idioma: |
Inglês |
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Conteúdo: |
This paper proposes a method to determine selenium in samples of fish muscle and liver tissue using ultrasound assisted extraction process, and analysed by graphite furnace atomic absorption spectrometry (GFAAS). The selenium content was extracted by 0.10 M HCl at the optimal extraction conditions which were established as follows: sample mass of 100 mg; granulometry of the sample <60 ?m; sonication time of five 40 s cycles; and sonication power of 136 W. The selenium determinations were performed by GFAAS, at a drying temperature of 120oC/250oC, pyrolysis temperature of 1300oC, atomization temperature of 2300oC, and cleaning temperature of 2800oC. Palladium nitrate was used as a chemical modifier coinjected with the samples, and tungsten as a permanent modifier. The concentration of selenium determined in the pool of fish muscle and liver tissue were 280.4±4.2 e 592.3±6.7 ?g kg?1, respectively. The accuracy and precision of the proposed extraction method were evaluated using certified standard Bovine Muscle ? NIST 8414. The results obtained by the ultrasonic extraction method were equivalent to those obtained by the method of acid mineralization of samples in a microwave oven. |
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Palavras-Chave: |
Essentiality of Selenium; Graphite furnace atomic absorption spectrometry; Nile; Selenium extraction. |
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Thesaurus NAL: |
fish nutrition. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/37793/1/PaperFinalFbio-1.pdf
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Marc: |
LEADER 02048naa a2200265 a 4500
001 1871370
005 2022-07-26
008 2011 bl uuuu u00u1 u #d
024 7 $a10.2478/s11532-010-0121-0$2DOI
100 1 $aSILVA, F. A.
245 $aSelenium determination in tissue samples of Nile tilapia using ultrasound-assisted extraction.$h[electronic resource]
260 $c2011
520 $aThis paper proposes a method to determine selenium in samples of fish muscle and liver tissue using ultrasound assisted extraction process, and analysed by graphite furnace atomic absorption spectrometry (GFAAS). The selenium content was extracted by 0.10 M HCl at the optimal extraction conditions which were established as follows: sample mass of 100 mg; granulometry of the sample <60 ?m; sonication time of five 40 s cycles; and sonication power of 136 W. The selenium determinations were performed by GFAAS, at a drying temperature of 120oC/250oC, pyrolysis temperature of 1300oC, atomization temperature of 2300oC, and cleaning temperature of 2800oC. Palladium nitrate was used as a chemical modifier coinjected with the samples, and tungsten as a permanent modifier. The concentration of selenium determined in the pool of fish muscle and liver tissue were 280.4±4.2 e 592.3±6.7 ?g kg?1, respectively. The accuracy and precision of the proposed extraction method were evaluated using certified standard Bovine Muscle ? NIST 8414. The results obtained by the ultrasonic extraction method were equivalent to those obtained by the method of acid mineralization of samples in a microwave oven.
650 $afish nutrition
653 $aEssentiality of Selenium
653 $aGraphite furnace atomic absorption spectrometry
653 $aNile
653 $aSelenium extraction
700 1 $aPADILHA, C. C. F.
700 1 $aCASTRO, G. R. de
700 1 $aROLDAN, P. dos S.
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aMORAES, P. M.
700 1 $aPADILHA, P. M.
773 $tCentral European Journal of Chemistry$gv. 9, n. 1, p. 119-125, 2011.
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Embrapa Pecuária Sudeste (CPPSE) |
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