Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry

Detalhes bibliográficos
Autor(a) principal: Santos, Denilson S. S. dos
Data de Publicação: 2007
Outros Autores: Teixeira, Alete Paixão, Barbosa, José Tiago Pereira, Ferreira, Sergio Luis Costa, Korn, Maria das Graças Andrade, Teixeira, Leonardo Sena Gomes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/14396
Resumo: Texto completo: acesso restrito. p. 1072-1077
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spelling Santos, Denilson S. S. dosTeixeira, Alete PaixãoBarbosa, José Tiago PereiraFerreira, Sergio Luis CostaKorn, Maria das Graças AndradeTeixeira, Leonardo Sena GomesSantos, Denilson S. S. dosTeixeira, Alete PaixãoBarbosa, José Tiago PereiraFerreira, Sergio Luis CostaKorn, Maria das Graças AndradeTeixeira, Leonardo Sena Gomes2014-01-21T10:34:09Z20070584-8547http://repositorio.ufba.br/ri/handle/ri/14396v. 62, n. 9Texto completo: acesso restrito. p. 1072-1077In this work, the use of cetyltrimethylammonium bromide as surfactant for the preparation of oil-in-water emulsions for the determination of Cu and Cr in gasoline by electrothermal atomic absorption spectrometry (ET AAS) was evaluated. The surfactant amount was tested in the range of 25 to 300 mg, added to 2 ml of gasoline, and completed to 10 mL with 0.1% (v/v) nitric acid solution. 150 mg of surfactant was found optimum, and a sonication time of 10 min sufficient to form an oil-in-water emulsion that was stable for several hours. The ET AAS temperature program was established based on pyrolysis and atomization curves. The pyrolysis temperatures were set at 700 and 1300 °C for Cu and Cr, respectively and the selected atomization temperatures were 2400 and 2500 °C. The time and temperature of the drying stage and the atomization time were experimentally tested to provide optimum conditions. The limits of detection were found to be 5 μg L− 1 and 1.5 μg L− 1 for Cu and Cr, respectively in the original gasoline samples. The relative standard deviation (RSD) ranged from 4 to 9% in oil-in-water emulsions spiked with 5 μg L− 1 and 15 μg L− 1 of each metal, respectively. Recoveries varied from 90 to 98%. The accuracy of the proposed method was tested by an alternate procedure using complete evaporation of the gasoline sample. The method was adequate for the determination of Cu and Cr in gasoline samples collected from different gas stations in Salvador, BA, Brazil.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-01-21T10:34:09Z No. of bitstreams: 1 1-s2.0-S0584854707001644-main.pdf: 170256 bytes, checksum: 036ecf160496a760af91cabe0fdcc0b6 (MD5)Made available in DSpace on 2014-01-21T10:34:09Z (GMT). No. of bitstreams: 1 1-s2.0-S0584854707001644-main.pdf: 170256 bytes, checksum: 036ecf160496a760af91cabe0fdcc0b6 (MD5) Previous issue date: 2007http://dx.doi.org/10.1016/j.sab.2007.06.004reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAGasolineCetyltrimethylammonium bromideCopperChromiumOil-in-water emulsionsUse of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometrySpectrochimica Acta Part B: Atomic Spectroscopyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINAL1-s2.0-S0584854707001644-main.pdf1-s2.0-S0584854707001644-main.pdfapplication/pdf170256https://repositorio.ufba.br/bitstream/ri/14396/1/1-s2.0-S0584854707001644-main.pdf036ecf160496a760af91cabe0fdcc0b6MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/14396/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXT1-s2.0-S0584854707001644-main.pdf.txt1-s2.0-S0584854707001644-main.pdf.txtExtracted texttext/plain28735https://repositorio.ufba.br/bitstream/ri/14396/3/1-s2.0-S0584854707001644-main.pdf.txte4f98b2dc3b275dcf0f15fec06d70ac8MD53ri/143962022-07-05 14:03:43.888oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:43Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
dc.title.alternative.pt_BR.fl_str_mv Spectrochimica Acta Part B: Atomic Spectroscopy
title Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
spellingShingle Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
Santos, Denilson S. S. dos
Gasoline
Cetyltrimethylammonium bromide
Copper
Chromium
Oil-in-water emulsions
title_short Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
title_full Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
title_fullStr Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
title_full_unstemmed Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
title_sort Use of cetyltrimethylammonium bromide as surfactant for the determination of copper and chromium in gasoline emulsions by electrothermal atomic absorption spectrometry
author Santos, Denilson S. S. dos
author_facet Santos, Denilson S. S. dos
Teixeira, Alete Paixão
Barbosa, José Tiago Pereira
Ferreira, Sergio Luis Costa
Korn, Maria das Graças Andrade
Teixeira, Leonardo Sena Gomes
author_role author
author2 Teixeira, Alete Paixão
Barbosa, José Tiago Pereira
Ferreira, Sergio Luis Costa
Korn, Maria das Graças Andrade
Teixeira, Leonardo Sena Gomes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Santos, Denilson S. S. dos
Teixeira, Alete Paixão
Barbosa, José Tiago Pereira
Ferreira, Sergio Luis Costa
Korn, Maria das Graças Andrade
Teixeira, Leonardo Sena Gomes
Santos, Denilson S. S. dos
Teixeira, Alete Paixão
Barbosa, José Tiago Pereira
Ferreira, Sergio Luis Costa
Korn, Maria das Graças Andrade
Teixeira, Leonardo Sena Gomes
dc.subject.por.fl_str_mv Gasoline
Cetyltrimethylammonium bromide
Copper
Chromium
Oil-in-water emulsions
topic Gasoline
Cetyltrimethylammonium bromide
Copper
Chromium
Oil-in-water emulsions
description Texto completo: acesso restrito. p. 1072-1077
publishDate 2007
dc.date.issued.fl_str_mv 2007
dc.date.accessioned.fl_str_mv 2014-01-21T10:34:09Z
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://repositorio.ufba.br/ri/handle/ri/14396
dc.identifier.issn.none.fl_str_mv 0584-8547
dc.identifier.number.pt_BR.fl_str_mv v. 62, n. 9
identifier_str_mv 0584-8547
v. 62, n. 9
url http://repositorio.ufba.br/ri/handle/ri/14396
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 http://dx.doi.org/10.1016/j.sab.2007.06.004
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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