Fast method for the determination of copper, manganese and iron in seafood samples

Detalhes bibliográficos
Autor(a) principal: Silva, Erik Galvão Paranhos da
Data de Publicação: 2008
Outros Autores: Hatje, Vanessa, Santos, Walter Nei Lopes dos, Costa, Letícia M., Nogueira, Ana Rita de Araujo, Ferreira, Sergio Luis Costa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6156
Resumo: Acesso restrito: Texto completo. p .259-263
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spelling Silva, Erik Galvão Paranhos daHatje, VanessaSantos, Walter Nei Lopes dosCosta, Letícia M.Nogueira, Ana Rita de AraujoFerreira, Sergio Luis CostaSilva, Erik Galvão Paranhos daHatje, VanessaSantos, Walter Nei Lopes dosCosta, Letícia M.Nogueira, Ana Rita de AraujoFerreira, Sergio Luis Costa2012-06-15T12:47:09Z20080889-1575http://www.repositorio.ufba.br/ri/handle/ri/6156v. 21, n. 3Acesso restrito: Texto completo. p .259-263A slurry sampling flame atomic absorption spectrometric method is proposed for the determination of copper, manganese and iron in oysters (Crassostrea rhizophora), clams (Anomalocardia brasiliana) and mussels (Mytella guiyanensis; Perna perna). Optimization was carried out using univariate methodology involving the following variables: nature and concentration of the acid solution for slurry preparation, sonication time and sample mass. The optimized conditions were 80mg of sample ground in a cryogenic mil, dilution using 1.0 mol L 1 nitric /hydrochloric acid solution, sonication time of 30 min and a slurry volume of 10 mL. The calibration curves had been prepared using standards of copper, manganese and iron also in 1.0 molL 1 nitric/hydrochloric acid solution. This method allowed the determination of copper, manganese and iron by FAAS, with detection limits of 0.17, 0.09 and 0.46 mg g 1, respectively. The precision, expressed as relative standard deviation (RSD), are 3.0%, 2.9% and 3.8% (n ¼ 10), for concentrations of copper, manganese and iron of 17, 22 and 719 mgg 1, respectively. The accuracy of the method was confirmed by analysis of the certified oyster tissue (NIST 1566b). The proposed method was applied for the determination of copper, manganese and iron in samples of oyster, clams and mussels, collected in Ubatuba and Todos os Santos Bay, Brazil. The obtained concentrations varied between 17.1 and 143.9 mg g 1, 17.9 and 29.7 mg g 1 and 364 and 1388 mgg 1, respectively, for copper, manganese and iron. These values agree well with other data reported in the literature. The results showed no significant differences (P40.005) using the proposed method with those obtained after complete digestion and determination by inductively coupled plasma-optical emission spectroscopy (ICP-OES).Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-15T12:47:09Z No. of bitstreams: 1 __ac.els-cdn.com_S088915...3bd67ba1abb901947469a890d1f08.pdf: 100385 bytes, checksum: 9a146945004b93e8f02a8e08d3038890 (MD5)Made available in DSpace on 2012-06-15T12:47:09Z (GMT). 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dc.title.pt_BR.fl_str_mv Fast method for the determination of copper, manganese and iron in seafood samples
dc.title.alternative.pt_BR.fl_str_mv Journal of Food Composition and Analysis
title Fast method for the determination of copper, manganese and iron in seafood samples
spellingShingle Fast method for the determination of copper, manganese and iron in seafood samples
Silva, Erik Galvão Paranhos da
Determination of copper manganese and iron
Cu
Mn
Fe
Slurry sampling
Fast sequential
Seafood samples
Oysters
Crassostrea rhizophora
Clams
Anomalocardia brasiliana
Mussels
Mytella guiyanensis
Perna perna
title_short Fast method for the determination of copper, manganese and iron in seafood samples
title_full Fast method for the determination of copper, manganese and iron in seafood samples
title_fullStr Fast method for the determination of copper, manganese and iron in seafood samples
title_full_unstemmed Fast method for the determination of copper, manganese and iron in seafood samples
title_sort Fast method for the determination of copper, manganese and iron in seafood samples
author Silva, Erik Galvão Paranhos da
author_facet Silva, Erik Galvão Paranhos da
Hatje, Vanessa
Santos, Walter Nei Lopes dos
Costa, Letícia M.
Nogueira, Ana Rita de Araujo
Ferreira, Sergio Luis Costa
author_role author
author2 Hatje, Vanessa
Santos, Walter Nei Lopes dos
Costa, Letícia M.
Nogueira, Ana Rita de Araujo
Ferreira, Sergio Luis Costa
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva, Erik Galvão Paranhos da
Hatje, Vanessa
Santos, Walter Nei Lopes dos
Costa, Letícia M.
Nogueira, Ana Rita de Araujo
Ferreira, Sergio Luis Costa
Silva, Erik Galvão Paranhos da
Hatje, Vanessa
Santos, Walter Nei Lopes dos
Costa, Letícia M.
Nogueira, Ana Rita de Araujo
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Determination of copper manganese and iron
Cu
Mn
Fe
Slurry sampling
Fast sequential
Seafood samples
Oysters
Crassostrea rhizophora
Clams
Anomalocardia brasiliana
Mussels
Mytella guiyanensis
Perna perna
topic Determination of copper manganese and iron
Cu
Mn
Fe
Slurry sampling
Fast sequential
Seafood samples
Oysters
Crassostrea rhizophora
Clams
Anomalocardia brasiliana
Mussels
Mytella guiyanensis
Perna perna
description Acesso restrito: Texto completo. p .259-263
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-06-15T12:47:09Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6156
dc.identifier.issn.none.fl_str_mv 0889-1575
dc.identifier.number.pt_BR.fl_str_mv v. 21, n. 3
identifier_str_mv 0889-1575
v. 21, n. 3
url http://www.repositorio.ufba.br/ri/handle/ri/6156
dc.language.iso.fl_str_mv eng
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