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 | Acesso ao texto completo restrito à biblioteca da Embrapa Tabuleiros Costeiros. Para informações adicionais entre em contato com cpatc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste; Embrapa Tabuleiros Costeiros. |
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Data corrente: |
13/12/2023 |
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Data da última atualização: |
13/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SA, I. P. de; SILVA, C. A. da; NOGUEIRA, A. R. de A. |
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Afiliação: |
IVERO PITA DE SA, UFSC; CARLOS ALBERTO DA SILVA, CPATC; ANA RITA DE ARAUJO NOGUEIRA, CPPSE. |
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Título: |
Chemical Speciation of Arsenic and Chromium in Seafood by LC-ICP-MS. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Brazilian Journal of Analytical Chemistry, 2023. |
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DOI: |
10.30744/brjac.2179-3425.AR-13-2023 |
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Idioma: |
Inglês |
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Conteúdo: |
Two methods were developed for the As and Cr species determination in different kinds of seafood, exploring the LC-ICP-MS potential and chemometric approach to define the extraction conditions. Adequates separation and sensitivity data by LC-ICP-MS were obtained with 0.01 mol L-1 (NH4)2 HPO4 in 1% methanol (pH 8.0) for arsenic, and 0.015 mol L-1 Na2 SO4 , 0.005 mol L-1 EDTA, and 0.005 mol L-1 NaH2 PO4(pH 7.0) for chromium. The Doehlert matrix and Box-Behnken design defined the ideal extraction conditions for arsenic and chromium species. For As extraction, the optimized conditions employed 0.1 g of sample and 30 mmol L-1 HNO3 at 90 °C for 45 min, and Cr, 0.1 g of sample and 0.045 mol L-1 [EDTA] at 90 °C for 40 min. Recoveries from 88 to 106% of arsenobetaine (AsB), arsenite [As(III)], dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), arsenate [As(V)], Cr(III) and Cr(VI) were obtained for all evaluated samples. The limits of quantification provided by the proposed methods were 5.3; 52.1; 16.4; 2.8; 83.3; 113.8; 53.9 ng g-1 for AsB, As(III), DMA, MMA, As(V), Cr(III) and Cr(VI) respectively. The trueness was evaluated using certified reference materials and addition and recovery procedures. The sum of the species agreed with the total concentration of arsenic and chromium contents. |
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Thesagro: |
Análise Química; Cromo; Marisco. |
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Thesaurus Nal: |
Chemical speciation; Seafoods. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 01939naa a2200217 a 4500
001 2159662
005 2023-12-13
008 2023 bl uuuu u00u1 u #d
024 7 $a10.30744/brjac.2179-3425.AR-13-2023$2DOI
100 1 $aSA, I. P. de
245 $aChemical Speciation of Arsenic and Chromium in Seafood by LC-ICP-MS.$h[electronic resource]
260 $c2023
520 $aTwo methods were developed for the As and Cr species determination in different kinds of seafood, exploring the LC-ICP-MS potential and chemometric approach to define the extraction conditions. Adequates separation and sensitivity data by LC-ICP-MS were obtained with 0.01 mol L-1 (NH4)2 HPO4 in 1% methanol (pH 8.0) for arsenic, and 0.015 mol L-1 Na2 SO4 , 0.005 mol L-1 EDTA, and 0.005 mol L-1 NaH2 PO4(pH 7.0) for chromium. The Doehlert matrix and Box-Behnken design defined the ideal extraction conditions for arsenic and chromium species. For As extraction, the optimized conditions employed 0.1 g of sample and 30 mmol L-1 HNO3 at 90 °C for 45 min, and Cr, 0.1 g of sample and 0.045 mol L-1 [EDTA] at 90 °C for 40 min. Recoveries from 88 to 106% of arsenobetaine (AsB), arsenite [As(III)], dimethylarsinic acid (DMA), monomethylarsonic acid (MMA), arsenate [As(V)], Cr(III) and Cr(VI) were obtained for all evaluated samples. The limits of quantification provided by the proposed methods were 5.3; 52.1; 16.4; 2.8; 83.3; 113.8; 53.9 ng g-1 for AsB, As(III), DMA, MMA, As(V), Cr(III) and Cr(VI) respectively. The trueness was evaluated using certified reference materials and addition and recovery procedures. The sum of the species agreed with the total concentration of arsenic and chromium contents.
650 $aChemical speciation
650 $aSeafoods
650 $aAnálise Química
650 $aCromo
650 $aMarisco
700 1 $aSILVA, C. A. da
700 1 $aNOGUEIRA, A. R. de A.
773 $tBrazilian Journal of Analytical Chemistry, 2023.
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