Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Castro, Martha Teresa Pantoja de Oliveira
Data de Publicação: 2005
Outros Autores: Baccan, Nivaldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6584
Resumo: Trabalho completo: acesso restrito, p. 1264–1269
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spelling Castro, Martha Teresa Pantoja de OliveiraBaccan, NivaldoCastro, Martha Teresa Pantoja de OliveiraBaccan, Nivaldo2012-08-13T19:39:11Z20050039-9140http://www.repositorio.ufba.br/ri/handle/ri/6584v. 65, n. 5Trabalho completo: acesso restrito, p. 1264–1269In the present paper, a procedure for preconcentration and determination of copper in soft drink using flame atomic absorption spectrometry (FAAS) is proposed, which is based on solid-phase extraction of copper(II) ions as its ion pair of 1,10-phenanthroline complexes with the anionic surfactant sodium dodecil sulphate (SDS), by Amberlite XAD-2 resin. The optimization process was carried out using 24–1 factorial and 22 factorial with a center point designs. Four variables (XAD-2 mass, copper mass, sample flow rate and elution flow rate) were regarded as factors in the optimization. Student's t-test on the results of the 24–1 factorial design with eight runs for copper extraction, demonstrated that the factors XAD-2 mass and sample flow rate in the levels studied are statistically significant. The 22 factorial with a center point design was applied in order to determine the optimum conditions for extraction. The procedure proposed allowed the determination of copper with detection limits (3α/S) of 3.9 μg l−1. The precision, calculated as relative standard deviation (R.S.D.) was 1.8% for 20.0 μg l−1 of copper. The preconcentration factor was 100. The robustness of this procedure is demonstrated by the recovery achieved for determination of copper in the presence of several cations. This procedure was applied to the determination of copper in soft drink samples collected in Campinas, SP, Brazil.Submitted by Bruna Lessa (lessbruna@gmail.com) on 2012-08-13T19:39:11Z No. of bitstreams: 1 (156).pdf: 171366 bytes, checksum: 0f385ebe4d8eebf5ac52ae7e7edbdf4e (MD5)Made available in DSpace on 2012-08-13T19:39:11Z (GMT). No. of bitstreams: 1 (156).pdf: 171366 bytes, checksum: 0f385ebe4d8eebf5ac52ae7e7edbdf4e (MD5) Previous issue date: 2005-03-15Elsevierhttp://dx.doi.org/10.1016/j.talanta.2004.09.002reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACopperFactorial designFlame atomic absorption spectrometry (FAAS)Soft drinkApplication of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometryTalantainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL(156).pdf(156).pdfapplication/pdf171366https://repositorio.ufba.br/bitstream/ri/6584/1/%28156%29.pdf0f385ebe4d8eebf5ac52ae7e7edbdf4eMD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/6584/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT(156).pdf.txt(156).pdf.txtExtracted texttext/plain22619https://repositorio.ufba.br/bitstream/ri/6584/3/%28156%29.pdf.txtca408988f164972d57b6e417a6814759MD53ri/65842022-09-28 16:35:09.114oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-09-28T19:35:09Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv Talanta
title Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
spellingShingle Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
Castro, Martha Teresa Pantoja de Oliveira
Copper
Factorial design
Flame atomic absorption spectrometry (FAAS)
Soft drink
title_short Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
title_full Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
title_fullStr Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
title_full_unstemmed Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
title_sort Application of factorial design in optimization of preconcentration procedure for copper determination in soft drink by flame atomic absorption spectrometry
author Castro, Martha Teresa Pantoja de Oliveira
author_facet Castro, Martha Teresa Pantoja de Oliveira
Baccan, Nivaldo
author_role author
author2 Baccan, Nivaldo
author2_role author
dc.contributor.author.fl_str_mv Castro, Martha Teresa Pantoja de Oliveira
Baccan, Nivaldo
Castro, Martha Teresa Pantoja de Oliveira
Baccan, Nivaldo
dc.subject.por.fl_str_mv Copper
Factorial design
Flame atomic absorption spectrometry (FAAS)
Soft drink
topic Copper
Factorial design
Flame atomic absorption spectrometry (FAAS)
Soft drink
description Trabalho completo: acesso restrito, p. 1264–1269
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2012-08-13T19:39:11Z
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/6584
dc.identifier.issn.none.fl_str_mv 0039-9140
dc.identifier.number.pt_BR.fl_str_mv v. 65, n. 5
identifier_str_mv 0039-9140
v. 65, n. 5
url http://www.repositorio.ufba.br/ri/handle/ri/6584
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.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.talanta.2004.09.002
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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