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Determination of free glycerol in biodiesel at a platinum oxide surface using potential cycling technique

dc.contributor.authorLourenco, Leandro Maranghetti [UNESP]
dc.contributor.authorStradiotto, Nelson Ramos [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:19:08Z
dc.date.available2014-05-20T14:19:08Z
dc.date.issued2009-06-30
dc.description.abstractA novel, inexpensive and fast method based on the electrooxidation of glycerol on platinum electrodes by the potential cycling technique has been designed for the determination of free glycerol in biodiesel. A wide range of linearity was achieved between 15 and 150 mg L(-1) (0.16 and 1.6 mmol L(-1)), which corresponds to concentrations ranging between 56 and 560 mg kg(-1) (glycerol: biodiesel) for an extraction using 2g biodiesel. A method for the fast extraction of glycerol from biodiesel with water followed by elimination of organic interferents has also been developed, so that the novel determination method can be applied to various biodiesel samples. The excellent repeatability allows determination of glycerol in numerous samples, with no need for recalibration. (C) 2009 Elsevier B.V. All rights reserved.en
dc.description.affiliationSão Paulo State Univ, UNESP, Dept Analyt Chem, Araraquara, SP, Brazil
dc.description.affiliationUnespSão Paulo State Univ, UNESP, Dept Analyt Chem, Araraquara, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent92-96
dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2009.03.013
dc.identifier.citationTalanta. Amsterdam: Elsevier B.V., v. 79, n. 1, p. 92-96, 2009.
dc.identifier.doi10.1016/j.talanta.2009.03.013
dc.identifier.issn0039-9140
dc.identifier.lattes0072173018005712
dc.identifier.urihttp://hdl.handle.net/11449/25764
dc.identifier.wosWOS:000266187600016
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofTalanta
dc.relation.ispartofjcr4.244
dc.relation.ispartofsjr1,186
dc.rights.accessRightsAcesso restritopt
dc.sourceWeb of Science
dc.subjectBiodieselen
dc.subjectFree glycerolen
dc.subjectPlatinumen
dc.subjectPotential cycling techniqueen
dc.subjectCyclic voltammetryen
dc.subjectQuality controlen
dc.titleDetermination of free glycerol in biodiesel at a platinum oxide surface using potential cycling techniqueen
dc.typeArtigopt
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
dspace.entity.typePublication
relation.isOrgUnitOfPublicationbc74a1ce-4c4c-4dad-8378-83962d76c4fd
relation.isOrgUnitOfPublication.latestForDiscoverybc74a1ce-4c4c-4dad-8378-83962d76c4fd
unesp.author.lattes0072173018005712
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt
unesp.departmentQuímica Analítica - IQARpt

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