Metal fractionation in sediments of the Sergipe River, northeast, Brazil

Detalhes bibliográficos
Autor(a) principal: Passos,Elisangela de Andrade
Data de Publicação: 2011
Outros Autores: Alves,Jose do Patrocínio H, Garcia,Carlos Alexandre B, Costa,Antonio C. Spinola
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500004
Resumo: The sequential extraction procedure proposed by the European Community Bureau of Reference (BCR) was applied for the fractionation of Cd, Cr, Cu, Ni, Pb and Zn in sediments from the Sergipe Estuary, Brazil. The method showed satisfactory recoveries, detection limits and standard deviations for trace metals determinations in sediment samples. Cd was the metal with the greatest percentage in the exchangeable fraction. Pb and Ni were present mainly in the reducible and oxidizable fractions. Cr, Cu and Zn were predominantly associated with the residual fraction. The order of mobility of metals extracted was Pb > Cd > Ni > Cu > Cr > Zn. According to the risk assessment code (RAC), the sediments showed low to medium risk for all metals.
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spelling Metal fractionation in sediments of the Sergipe River, northeast, Brazilsequential extractiontrace metalsestuarine sedimentrisk assessment codeThe sequential extraction procedure proposed by the European Community Bureau of Reference (BCR) was applied for the fractionation of Cd, Cr, Cu, Ni, Pb and Zn in sediments from the Sergipe Estuary, Brazil. The method showed satisfactory recoveries, detection limits and standard deviations for trace metals determinations in sediment samples. Cd was the metal with the greatest percentage in the exchangeable fraction. Pb and Ni were present mainly in the reducible and oxidizable fractions. Cr, Cu and Zn were predominantly associated with the residual fraction. The order of mobility of metals extracted was Pb > Cd > Ni > Cu > Cr > Zn. According to the risk assessment code (RAC), the sediments showed low to medium risk for all metals.Sociedade Brasileira de Química2011-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500004Journal of the Brazilian Chemical Society v.22 n.5 2011reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532011000500004info:eu-repo/semantics/openAccessPassos,Elisangela de AndradeAlves,Jose do Patrocínio HGarcia,Carlos Alexandre BCosta,Antonio C. Spinolaeng2011-05-16T00:00:00Zoai:scielo:S0103-50532011000500004Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2011-05-16T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Metal fractionation in sediments of the Sergipe River, northeast, Brazil
title Metal fractionation in sediments of the Sergipe River, northeast, Brazil
spellingShingle Metal fractionation in sediments of the Sergipe River, northeast, Brazil
Passos,Elisangela de Andrade
sequential extraction
trace metals
estuarine sediment
risk assessment code
title_short Metal fractionation in sediments of the Sergipe River, northeast, Brazil
title_full Metal fractionation in sediments of the Sergipe River, northeast, Brazil
title_fullStr Metal fractionation in sediments of the Sergipe River, northeast, Brazil
title_full_unstemmed Metal fractionation in sediments of the Sergipe River, northeast, Brazil
title_sort Metal fractionation in sediments of the Sergipe River, northeast, Brazil
author Passos,Elisangela de Andrade
author_facet Passos,Elisangela de Andrade
Alves,Jose do Patrocínio H
Garcia,Carlos Alexandre B
Costa,Antonio C. Spinola
author_role author
author2 Alves,Jose do Patrocínio H
Garcia,Carlos Alexandre B
Costa,Antonio C. Spinola
author2_role author
author
author
dc.contributor.author.fl_str_mv Passos,Elisangela de Andrade
Alves,Jose do Patrocínio H
Garcia,Carlos Alexandre B
Costa,Antonio C. Spinola
dc.subject.por.fl_str_mv sequential extraction
trace metals
estuarine sediment
risk assessment code
topic sequential extraction
trace metals
estuarine sediment
risk assessment code
description The sequential extraction procedure proposed by the European Community Bureau of Reference (BCR) was applied for the fractionation of Cd, Cr, Cu, Ni, Pb and Zn in sediments from the Sergipe Estuary, Brazil. The method showed satisfactory recoveries, detection limits and standard deviations for trace metals determinations in sediment samples. Cd was the metal with the greatest percentage in the exchangeable fraction. Pb and Ni were present mainly in the reducible and oxidizable fractions. Cr, Cu and Zn were predominantly associated with the residual fraction. The order of mobility of metals extracted was Pb > Cd > Ni > Cu > Cr > Zn. According to the risk assessment code (RAC), the sediments showed low to medium risk for all metals.
publishDate 2011
dc.date.none.fl_str_mv 2011-05-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532011000500004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532011000500004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.22 n.5 2011
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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