Determination of inorganic ions in ethanol fuel by capillary electrophoresis

Detalhes bibliográficos
Autor(a) principal: Munoz,Rodrigo A. A.
Data de Publicação: 2004
Outros Autores: Richter,Eduardo M., Jesus,Dosil P. de, Lago,Claudimir L. do, Angnes,Lúcio
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400013
Resumo: The control of the content of inorganic ions in vehicular fuels plays an important role in the engine maintenance. A novel and versatile methodology to carry out rapid analysis of ions in ethanol is presented. Capillary electrophoresis was used to quantify cations (sodium, potassium, calcium, magnesium, and ammonium) and anions (sulfate, chloride, and nitrate). The injection of the sample directly in the capillary shows some lack of repeatability of the results. The prior evaporation of the ethanol, followed by a re-suspension of the residual material, leads to reliable results. The detection limits of the eight ions range between 0.06 and 0.18 mg L-1. Lower detection limits could be attained by increasing the injection time and/or the injection pressure.
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spelling Determination of inorganic ions in ethanol fuel by capillary electrophoresisethanol fuelinorganic ionscapillary electrophoresisThe control of the content of inorganic ions in vehicular fuels plays an important role in the engine maintenance. A novel and versatile methodology to carry out rapid analysis of ions in ethanol is presented. Capillary electrophoresis was used to quantify cations (sodium, potassium, calcium, magnesium, and ammonium) and anions (sulfate, chloride, and nitrate). The injection of the sample directly in the capillary shows some lack of repeatability of the results. The prior evaporation of the ethanol, followed by a re-suspension of the residual material, leads to reliable results. The detection limits of the eight ions range between 0.06 and 0.18 mg L-1. Lower detection limits could be attained by increasing the injection time and/or the injection pressure.Sociedade Brasileira de Química2004-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400013Journal of the Brazilian Chemical Society v.15 n.4 2004reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532004000400013info:eu-repo/semantics/openAccessMunoz,Rodrigo A. A.Richter,Eduardo M.Jesus,Dosil P. deLago,Claudimir L. doAngnes,Lúcioeng2004-09-15T00:00:00Zoai:scielo:S0103-50532004000400013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2004-09-15T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Determination of inorganic ions in ethanol fuel by capillary electrophoresis
title Determination of inorganic ions in ethanol fuel by capillary electrophoresis
spellingShingle Determination of inorganic ions in ethanol fuel by capillary electrophoresis
Munoz,Rodrigo A. A.
ethanol fuel
inorganic ions
capillary electrophoresis
title_short Determination of inorganic ions in ethanol fuel by capillary electrophoresis
title_full Determination of inorganic ions in ethanol fuel by capillary electrophoresis
title_fullStr Determination of inorganic ions in ethanol fuel by capillary electrophoresis
title_full_unstemmed Determination of inorganic ions in ethanol fuel by capillary electrophoresis
title_sort Determination of inorganic ions in ethanol fuel by capillary electrophoresis
author Munoz,Rodrigo A. A.
author_facet Munoz,Rodrigo A. A.
Richter,Eduardo M.
Jesus,Dosil P. de
Lago,Claudimir L. do
Angnes,Lúcio
author_role author
author2 Richter,Eduardo M.
Jesus,Dosil P. de
Lago,Claudimir L. do
Angnes,Lúcio
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Munoz,Rodrigo A. A.
Richter,Eduardo M.
Jesus,Dosil P. de
Lago,Claudimir L. do
Angnes,Lúcio
dc.subject.por.fl_str_mv ethanol fuel
inorganic ions
capillary electrophoresis
topic ethanol fuel
inorganic ions
capillary electrophoresis
description The control of the content of inorganic ions in vehicular fuels plays an important role in the engine maintenance. A novel and versatile methodology to carry out rapid analysis of ions in ethanol is presented. Capillary electrophoresis was used to quantify cations (sodium, potassium, calcium, magnesium, and ammonium) and anions (sulfate, chloride, and nitrate). The injection of the sample directly in the capillary shows some lack of repeatability of the results. The prior evaporation of the ethanol, followed by a re-suspension of the residual material, leads to reliable results. The detection limits of the eight ions range between 0.06 and 0.18 mg L-1. Lower detection limits could be attained by increasing the injection time and/or the injection pressure.
publishDate 2004
dc.date.none.fl_str_mv 2004-08-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532004000400013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532004000400013
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.15 n.4 2004
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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