Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments

Detalhes bibliográficos
Autor(a) principal: Hatje, Vanessa
Data de Publicação: 2009
Outros Autores: Costa, Letícia M., Korn, Maria das Graças Andrade, Cotrim, Gabriel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/4956
Resumo: p. 846-852.
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spelling Hatje, VanessaCosta, Letícia M.Korn, Maria das Graças AndradeCotrim, GabrielHatje, VanessaCosta, Letícia M.Korn, Maria das Graças AndradeCotrim, Gabriel2011-12-21T12:37:28Z2011-12-21T12:37:28Z20090103-5053http://www.repositorio.ufba.br/ri/handle/ri/4956v. 20, n. 5.p. 846-852.Uma análise de variância de três fatores foi usada para testar a significância do tipo de recipiente, tipo de material e número de replicatas na preparação de amostras de sedimento utilizando um banho ultra-sônico. A extração convencional com HCl 1,0 mol L-1, por 0,5, 4 e 12 h, foi modificada, e o banho ultra-sônico foi aplicado para diminuir o tempo de preparo de amostras. Os metais traço foram medidos por ICP OES. Os melhores resultados foram obtidos com frascos de Teflon® com base plana. Com exceção do Ni, constatou-se que é possível trabalhar no banho de ultrasom em triplicatas, sem comprometer a eficiência e/ou precisão da extração. A eficiência de extração melhorou com o aumento no tempo de sonicação de 1 para 50 min. Para a maioria dos elementos, a extração assistida por radiação ultra-sônica pode reduzir o tempo convencional de extração de 12 h para 50 min ou menos (i.e. 6 min para Pb). A precisão obtida foi comparável aos valores obtidos com a extração convencional. O método proposto é rápido, barato e uma boa alternativa para o levantamento da biodisponibilidade e potencial de mobilidade de metais em sedimentos.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2011-12-21T12:37:28Z No. of bitstreams: 1 v20n5a07.pdf: 577483 bytes, checksum: 8a456411e7e90abed709798478bd888c (MD5)Made available in DSpace on 2011-12-21T12:37:28Z (GMT). No. of bitstreams: 1 v20n5a07.pdf: 577483 bytes, checksum: 8a456411e7e90abed709798478bd888c (MD5) Previous issue date: 2009São Paulohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532009000500007&lng=en&nrm=isoreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAUltrasonic bathSample preparationBioavailable metalsSedimentSpeeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sedimentsJournal of the Brazilian Chemical Societyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleenginfo:eu-repo/semantics/openAccessORIGINALv20n5a07.pdfv20n5a07.pdfapplication/pdf577483https://repositorio.ufba.br/bitstream/ri/4956/1/v20n5a07.pdf8a456411e7e90abed709798478bd888cMD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/4956/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXTv20n5a07.pdf.txtv20n5a07.pdf.txtExtracted texttext/plain23085https://repositorio.ufba.br/bitstream/ri/4956/3/v20n5a07.pdf.txtd95956d59a913dddd844bbbbe875bf23MD53ri/49562022-07-05 14:03:18.032oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:18Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
dc.title.alternative.pt_BR.fl_str_mv Journal of the Brazilian Chemical Society
title Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
spellingShingle Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
Hatje, Vanessa
Ultrasonic bath
Sample preparation
Bioavailable metals
Sediment
title_short Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
title_full Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
title_fullStr Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
title_full_unstemmed Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
title_sort Speeding up HCl extractions by employing ultrasound energy trace elements bioavailability in sediments
author Hatje, Vanessa
author_facet Hatje, Vanessa
Costa, Letícia M.
Korn, Maria das Graças Andrade
Cotrim, Gabriel
author_role author
author2 Costa, Letícia M.
Korn, Maria das Graças Andrade
Cotrim, Gabriel
author2_role author
author
author
dc.contributor.author.fl_str_mv Hatje, Vanessa
Costa, Letícia M.
Korn, Maria das Graças Andrade
Cotrim, Gabriel
Hatje, Vanessa
Costa, Letícia M.
Korn, Maria das Graças Andrade
Cotrim, Gabriel
dc.subject.por.fl_str_mv Ultrasonic bath
Sample preparation
Bioavailable metals
Sediment
topic Ultrasonic bath
Sample preparation
Bioavailable metals
Sediment
description p. 846-852.
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2011-12-21T12:37:28Z
dc.date.available.fl_str_mv 2011-12-21T12:37:28Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/4956
dc.identifier.issn.none.fl_str_mv 0103-5053
dc.identifier.number.pt_BR.fl_str_mv v. 20, n. 5.
identifier_str_mv 0103-5053
v. 20, n. 5.
url http://www.repositorio.ufba.br/ri/handle/ri/4956
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
instacron:UFBA
instname_str Universidade Federal da Bahia (UFBA)
instacron_str UFBA
institution UFBA
reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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