Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures

Detalhes bibliográficos
Autor(a) principal: Rebouças, Márcio das Virgens
Data de Publicação: 2010
Outros Autores: Domingos, Daniela, Santos, Aline S. O., Sampaio, Leilacy
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/12100
Resumo: Texto completo: acesso restrito. p.1702-1709
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spelling Rebouças, Márcio das VirgensDomingos, DanielaSantos, Aline S. O.Sampaio, LeilacyRebouças, Márcio das VirgensDomingos, DanielaSantos, Aline S. O.Sampaio, Leilacy2013-07-04T15:27:56Z2010-110378-3820http://www.repositorio.ufba.br/ri/handle/ri/12100v. 91, n. 11Texto completo: acesso restrito. p.1702-1709Naphtha is a volatile petroleum fraction containing C4–C15 hydrocarbon compounds used as feedstock for petrochemical processes which are seriously affected by trace metals. Simple methods for copper, iron, lead and silicon determination in naphtha using graphite furnace atomic absorption spectrometry (GFAAS) have been developed. Two different approaches are presented: direct injection of the sample and oil-in-water microemulsion formation using a mixture of the sample, propan-1-ol and nitric acid aqueous solution. The calibration curves showed linear response for each concentration range with correlation coefficients ranging from 0.9728 to 0.9998. Precision figures of 1.7–20%, reported as the relative standard deviation, were calculated from at least twenty consecutive measurements of solutions containing the metal in a concentration level below 100 μg L−1. The characteristic masses varied from 8.5 to 44 pg and the limit of detection, defined as the metal concentration that gives a response equivalent to three times the standard deviation of the blank (n = 10), was found to be within the range 0.01–26 μg L−1. A critical analysis is presented by the authors emphasizing the advantages and limitations of both approaches. The proposed procedures have been used for copper, iron, lead and silicon determination in naphtha feeds processed in Braskem S.A. (Camacari, Bahia, Brazil).Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2013-07-04T15:27:56Z No. of bitstreams: 1 1-s2.0-S0378382010002390-main.pdf: 292273 bytes, checksum: 84be7c8872347c1d5516de12f6b11061 (MD5)Made available in DSpace on 2013-07-04T15:27:56Z (GMT). No. of bitstreams: 1 1-s2.0-S0378382010002390-main.pdf: 292273 bytes, checksum: 84be7c8872347c1d5516de12f6b11061 (MD5) Previous issue date: 2010-11http://dx.doi.org/10.1016/j.fuproc.2010.07.007reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAMetalsNaphthaPetroleum productsMicroemulsionGFAASETAASDetermination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment proceduresFuel Processing Technologyinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINAL1-s2.0-S0378382010002390-main.pdf1-s2.0-S0378382010002390-main.pdfapplication/pdf292273https://repositorio.ufba.br/bitstream/ri/12100/1/1-s2.0-S0378382010002390-main.pdf84be7c8872347c1d5516de12f6b11061MD51LICENSElicense.txtlicense.txttext/plain1762https://repositorio.ufba.br/bitstream/ri/12100/2/license.txt1b89a9a0548218172d7c829f87a0eab9MD52TEXT1-s2.0-S0378382010002390-main.pdf.txt1-s2.0-S0378382010002390-main.pdf.txtExtracted texttext/plain43615https://repositorio.ufba.br/bitstream/ri/12100/3/1-s2.0-S0378382010002390-main.pdf.txt714b81a29f7cb7b0df5e2f04efcd948eMD53ri/121002022-07-05 14:02:51.862oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:02:51Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
dc.title.alternative.pt_BR.fl_str_mv Fuel Processing Technology
title Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
spellingShingle Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
Rebouças, Márcio das Virgens
Metals
Naphtha
Petroleum products
Microemulsion
GFAAS
ETAAS
title_short Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
title_full Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
title_fullStr Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
title_full_unstemmed Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
title_sort Determination of trace metals in naphtha by graphite furnace atomic absorption spectrometry: Comparison between direct injection and microemulsion pretreatment procedures
author Rebouças, Márcio das Virgens
author_facet Rebouças, Márcio das Virgens
Domingos, Daniela
Santos, Aline S. O.
Sampaio, Leilacy
author_role author
author2 Domingos, Daniela
Santos, Aline S. O.
Sampaio, Leilacy
author2_role author
author
author
dc.contributor.author.fl_str_mv Rebouças, Márcio das Virgens
Domingos, Daniela
Santos, Aline S. O.
Sampaio, Leilacy
Rebouças, Márcio das Virgens
Domingos, Daniela
Santos, Aline S. O.
Sampaio, Leilacy
dc.subject.por.fl_str_mv Metals
Naphtha
Petroleum products
Microemulsion
GFAAS
ETAAS
topic Metals
Naphtha
Petroleum products
Microemulsion
GFAAS
ETAAS
description Texto completo: acesso restrito. p.1702-1709
publishDate 2010
dc.date.issued.fl_str_mv 2010-11
dc.date.accessioned.fl_str_mv 2013-07-04T15:27:56Z
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/12100
dc.identifier.issn.none.fl_str_mv 0378-3820
dc.identifier.number.pt_BR.fl_str_mv v. 91, n. 11
identifier_str_mv 0378-3820
v. 91, n. 11
url http://www.repositorio.ufba.br/ri/handle/ri/12100
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.fuproc.2010.07.007
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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