Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Brandão, Geovani Cardoso
Data de Publicação: 2010
Outros Autores: Jesus, Raildo M. de, Silva, Erik Galvão Paranhos da, 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/5772
Resumo: Acesso restrito: Texto completo. p. 1357-1359.
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spelling Brandão, Geovani CardosoJesus, Raildo M. deSilva, Erik Galvão Paranhos daFerreira, Sergio Luis CostaBrandão, Geovani CardosoJesus, Raildo M. deSilva, Erik Galvão Paranhos daFerreira, Sergio Luis Costa2012-05-04T12:22:51Z20100039-9140http://www.repositorio.ufba.br/ri/handle/ri/5772v. 81, n. 4-5Acesso restrito: Texto completo. p. 1357-1359.This paper presents an analytical procedure for the direct determination of zinc in yogurt employing sampling slurry and high resolution-continuum source flame atomic absorption spectrometry (HR-CS FAAS). The step optimization established the experimental conditions of: 2.0 mol L−1 hydrochloric acid, a sonication time of 20 min and a sample mass of 1.0 g for a slurry volume of 25 mL. This method allows the determination of zinc with a limit of quantification of 0.32 gg−1. The precision expressed as relative standard deviation (RSD) were 0.82 and 2.08% for yogurt samples containing zinc concentrations of 4.85 and 2.49 gg−1, respectively. The accuracy was confirmed by the analysis of a certified reference material of non-fat milk powder furnished by the National Institute of Standard and Technology. The proposed method was applied for the determination of zinc in seven yogurt samples. The zinc content was varied from 2.19 to 4.85 gg−1. These results agreed with those reported in the literature. The samples were also analyzed after acid digestion and zinc determination by FAAS. No statistical difference was observed between the results obtained by both of the procedures performed.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-05-04T12:22:51Z No. of bitstreams: 1 __ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf: 73032 bytes, checksum: 4ab86d6238e03c42c0d9adb175360902 (MD5)Made available in DSpace on 2012-05-04T12:22:51Z (GMT). No. of bitstreams: 1 __ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf: 73032 bytes, checksum: 4ab86d6238e03c42c0d9adb175360902 (MD5) Previous issue date: 2010DOI: 10.1016/j.talanta.2010.02.033reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBASlurry samplingZinc determinationYogurt samplesHigh resolution-continuum source flame atomic absorption spectrometryUse of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometryTALANTAinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdfapplication/pdf73032https://repositorio.ufba.br/bitstream/ri/5772/1/__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf4ab86d6238e03c42c0d9adb175360902MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/5772/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf.txt__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf.txtExtracted texttext/plain15702https://repositorio.ufba.br/bitstream/ri/5772/3/__ac.els-cdn.com_S003991...d40d116356300764809ac511bda5e.pdf.txt305f7d596c71f0d412103df656f5e9dbMD53ri/57722022-07-05 14:03:12.599oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:12Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv TALANTA
title Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
spellingShingle Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
Brandão, Geovani Cardoso
Slurry sampling
Zinc determination
Yogurt samples
High resolution-continuum source flame atomic absorption spectrometry
title_short Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
title_full Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
title_fullStr Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
title_full_unstemmed Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
title_sort Use of slurry sampling for the direct determination of zinc in yogurt by high resolution-continuum source flame atomic absorption spectrometry
author Brandão, Geovani Cardoso
author_facet Brandão, Geovani Cardoso
Jesus, Raildo M. de
Silva, Erik Galvão Paranhos da
Ferreira, Sergio Luis Costa
author_role author
author2 Jesus, Raildo M. de
Silva, Erik Galvão Paranhos da
Ferreira, Sergio Luis Costa
author2_role author
author
author
dc.contributor.author.fl_str_mv Brandão, Geovani Cardoso
Jesus, Raildo M. de
Silva, Erik Galvão Paranhos da
Ferreira, Sergio Luis Costa
Brandão, Geovani Cardoso
Jesus, Raildo M. de
Silva, Erik Galvão Paranhos da
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Slurry sampling
Zinc determination
Yogurt samples
High resolution-continuum source flame atomic absorption spectrometry
topic Slurry sampling
Zinc determination
Yogurt samples
High resolution-continuum source flame atomic absorption spectrometry
description Acesso restrito: Texto completo. p. 1357-1359.
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2012-05-04T12:22:51Z
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/5772
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 81, n. 4-5
identifier_str_mv 0039-9140
v. 81, n. 4-5
url http://www.repositorio.ufba.br/ri/handle/ri/5772
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
dc.source.pt_BR.fl_str_mv DOI: 10.1016/j.talanta.2010.02.033
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
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reponame_str Repositório Institucional da UFBA
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