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| Registros recuperados : 645 | |
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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. |
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Data corrente: |
07/11/2006 |
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Data da última atualização: |
08/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
FERNANDES, K. G.; NOGUEIRA, A. R. de A.; GOMES NETO, J. A.; NÓBREGA, J. A. |
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Afiliação: |
KELLY G. FERNANDES, UFSCar; ANA RITA DE ARAUJO NOGUEIRA, CPPSE; JOSÉ A. GOMES, UNESP; JOAQUIM A. NÓBREGA, UFSCar. |
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Título: |
Determination of vanadium in human hair slurries by electrothermal atomic absorption spectrometry. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
Talanta, v. 71, n. 3, p. 1118-1123, 2007. |
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DOI: |
10.1016/j.talanta.2006.06.008 |
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Idioma: |
Inglês |
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Conteúdo: |
This work describes an analytical procedure for vanadium determination in human hair slurries by electrothermal AAS using longitudinal heating (LHGA) and transversal heating (THGA) graphite fumace atomizers. The samples were powdered using cryogenic grinding and lhe hair slurries containing 0.2 g L-I were prepared in three different media for determination of vanadium: 0.14 moi L-I HNO3, 0.1 % (v/v) Triton X-100 c and 0.1 % (v/v) water soluble tertiary amines (CFA-C, pH 8). The limits of detection (LOD), limits of quantification (LOQ), and characteristic masses obtained were 0.28, 0.95 ILg L-I and 35 pg (LHGA) and 0;34, 1.131Lg L-I and 78 pg (THGA), respectively. The accuracy of the analytical results obtained by lhe proposed procedure in both equipments was confirmed by a paired t-test at lhe 95% contidence leveI and compared with a conventional procedure based on acid digestion. |
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Palavras-Chave: |
Graphite furnance AAS; Human hair; LHGA; Slurry sampling; THGA. |
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Thesaurus NAL: |
vanadium. |
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Categoria do assunto: |
W Química e Física |
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Marc: |
LEADER 01601naa a2200241 a 4500
001 1047562
005 2023-03-08
008 2007 bl uuuu u00u1 u #d
024 7 $a10.1016/j.talanta.2006.06.008$2DOI
100 1 $aFERNANDES, K. G.
245 $aDetermination of vanadium in human hair slurries by electrothermal atomic absorption spectrometry.$h[electronic resource]
260 $c2007
520 $aThis work describes an analytical procedure for vanadium determination in human hair slurries by electrothermal AAS using longitudinal heating (LHGA) and transversal heating (THGA) graphite fumace atomizers. The samples were powdered using cryogenic grinding and lhe hair slurries containing 0.2 g L-I were prepared in three different media for determination of vanadium: 0.14 moi L-I HNO3, 0.1 % (v/v) Triton X-100 c and 0.1 % (v/v) water soluble tertiary amines (CFA-C, pH 8). The limits of detection (LOD), limits of quantification (LOQ), and characteristic masses obtained were 0.28, 0.95 ILg L-I and 35 pg (LHGA) and 0;34, 1.131Lg L-I and 78 pg (THGA), respectively. The accuracy of the analytical results obtained by lhe proposed procedure in both equipments was confirmed by a paired t-test at lhe 95% contidence leveI and compared with a conventional procedure based on acid digestion.
650 $avanadium
653 $aGraphite furnance AAS
653 $aHuman hair
653 $aLHGA
653 $aSlurry sampling
653 $aTHGA
700 1 $aNOGUEIRA, A. R. de A.
700 1 $aGOMES NETO, J. A.
700 1 $aNÓBREGA, J. A.
773 $tTalanta$gv. 71, n. 3, p. 1118-1123, 2007.
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