Publicação:
Determination of nickel in fuel ethanol using a carbon paste modified electrode containing dimethylglyoxime

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dc.contributor.authorOliveira Tartarotti, Fernando
dc.contributor.authorFirmino de Oliveira, Marcelo
dc.contributor.authorRoberto Balbo, Valdir
dc.contributor.authorRamos Stradiotto, Nelson
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:25:53Z
dc.date.available2014-05-20T15:25:53Z
dc.date.issued2006-10-01
dc.description.abstractA mercury-free electrode chemically modified with carbon paste containing dimethylglyoxime was used for determination of nickel in fuel ethanol. The instrumental parameters and composition of the modified paste were optimized. The analytical curve for nickel determination from 5.0 x 10(-9) to 5.0 x10(-7) mol(-1) was obtained using 25 min of accumulation time. The detection limit and amperometric sensitivity obtained for this method were 2.7 x 10 mol(-1) and 5.2 x 10(8) mu A mol(-1) L, respectively. The values for nickel concentration in four commercial samples of fuel ethanol were obtained in the range of 1.1 x 10(-8) to 6.9 x 10(-8) mol(-1). A comparison to graphite furnace atomic absorption spectrometry (GFAAS) was performed for nickel determination in commercial samples of ethanol.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciências, UNESP, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim, UNESP, BR-14800900 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciências, UNESP, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim, UNESP, BR-14800900 Araraquara, SP, Brazil
dc.format.extent397-401
dc.identifierhttp://dx.doi.org/10.1007/s00604-006-0638-2
dc.identifier.citationMicrochimica Acta. Wien: Springer Wien, v. 155, n. 3-4, p. 397-401, 2006.
dc.identifier.doi10.1007/s00604-006-0638-2
dc.identifier.issn0026-3672
dc.identifier.lattes0072173018005712
dc.identifier.urihttp://hdl.handle.net/11449/36213
dc.identifier.wosWOS:000241356200007
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofMicrochimica Acta
dc.relation.ispartofjcr5.705
dc.relation.ispartofsjr1,240
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectnickelpt
dc.subjectfuel ethanolpt
dc.subjectchemically modified electrodept
dc.subjectdimethylglyoximept
dc.subjectdifferential pulse voltammetrypt
dc.titleDetermination of nickel in fuel ethanol using a carbon paste modified electrode containing dimethylglyoximeen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
dspace.entity.typePublication
unesp.author.lattes0072173018005712
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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Araraquara - IQAR - Instituto de Química