Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Portugal, Lindomar Andrade
Data de Publicação: 2011
Outros Autores: Matos, Geraldo D., Lima, Daniel C., Brito, Geysa Barreto, Fernandes, Andréa Pires, 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/5479
Resumo: Acesso restrito: Texto completo. p. 29-31.
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spelling Portugal, Lindomar AndradeMatos, Geraldo D.Lima, Daniel C.Brito, Geysa BarretoFernandes, Andréa PiresFerreira, Sergio Luis CostaPortugal, Lindomar AndradeMatos, Geraldo D.Lima, Daniel C.Brito, Geysa BarretoFernandes, Andréa PiresFerreira, Sergio Luis Costa2012-03-01T13:21:10Z20110026-265Xhttp://www.repositorio.ufba.br/ri/handle/ri/5479v. 98, n. 1Acesso restrito: Texto completo. p. 29-31.This paper proposes a method for the determination of lead in aluminum and magnesium antacids employing electrothermal atomic absorption spectrometry (ET AAS). The pyrolysis and atomization temperatures established during the optimization step were 700 and 2200 °C, respectively, using phosphate as the chemical modifier. Under these conditions, a characteristic mass of 25 pg, and limits of detection and quantification of 0.40 and 1.35 μg L−1, respectively were obtained. Some experiments demonstrated that the calibration can be performed employing the external calibration technique using aqueous standards. The precision expressed as relative standard deviation (RSD %) was 4.03% for an antacid sample with lead concentrations of 284.5 μg L−1. The proposed method was applied for the determination of lead in five antacid samples acquired in Salvador City, Brazil. The lead content was varied from 87 to 943 μg g−1. The samples were also analyzed after complete dissolution by inductively coupled plasma mass spectrometry (ICP-MS). 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 2012-03-01T13:21:10Z No. of bitstreams: 1 __pdn.sciencedirect.com.....0-S0026265X10002110-main.pdf: 101572 bytes, checksum: d70c62fc0c4c8431d0f69be74a40f930 (MD5)Made available in DSpace on 2012-03-01T13:21:10Z (GMT). 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dc.title.pt_BR.fl_str_mv Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv Microchemical Journal
title Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
spellingShingle Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
Portugal, Lindomar Andrade
Lead determina
Antacid samples
ET AAS
title_short Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
title_full Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
title_fullStr Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
title_full_unstemmed Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
title_sort Determination of lead in aluminum and magnesium antacids using electrothermal atomic absorption spectrometry
author Portugal, Lindomar Andrade
author_facet Portugal, Lindomar Andrade
Matos, Geraldo D.
Lima, Daniel C.
Brito, Geysa Barreto
Fernandes, Andréa Pires
Ferreira, Sergio Luis Costa
author_role author
author2 Matos, Geraldo D.
Lima, Daniel C.
Brito, Geysa Barreto
Fernandes, Andréa Pires
Ferreira, Sergio Luis Costa
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Portugal, Lindomar Andrade
Matos, Geraldo D.
Lima, Daniel C.
Brito, Geysa Barreto
Fernandes, Andréa Pires
Ferreira, Sergio Luis Costa
Portugal, Lindomar Andrade
Matos, Geraldo D.
Lima, Daniel C.
Brito, Geysa Barreto
Fernandes, Andréa Pires
Ferreira, Sergio Luis Costa
dc.subject.por.fl_str_mv Lead determina
Antacid samples
ET AAS
topic Lead determina
Antacid samples
ET AAS
description Acesso restrito: Texto completo. p. 29-31.
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2012-03-01T13:21:10Z
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/5479
dc.identifier.issn.none.fl_str_mv 0026-265X
dc.identifier.number.pt_BR.fl_str_mv v. 98, n. 1
identifier_str_mv 0026-265X
v. 98, n. 1
url http://www.repositorio.ufba.br/ri/handle/ri/5479
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.microc.2010.10.005
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)
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