Stainless Steel Electrodes to Determine Biodiesel Content in Petroleum Diesel Fuel by Electrochemical Impedance Spectroscopy

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dc.contributor.authorPereira, Thulio Cesar
dc.contributor.authorDelfino, Jose R.
dc.contributor.authorFerreira, Antonio A. P. [UNESP]
dc.contributor.authorBarros, Fernando Jose S.
dc.contributor.authorMarques, Edmar P.
dc.contributor.authorZhang, Jiujun
dc.contributor.authorMarques, Aldalea L. B.
dc.contributor.institutionFed Univ MaranhAo UFMA
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Fed Maranhao
dc.contributor.institutionNatl Res Council Canada NRC
dc.date.accessioned2018-11-26T15:43:41Z
dc.date.available2018-11-26T15:43:41Z
dc.date.issued2017-03-01
dc.description.abstractThe blending ratio of biodiesel in petroleum diesel has become one of the most important parameters to ensure the quality of diesel/biodiesel blend. This paper presents a fast and simple method based on electrochemical impedance spectroscopy to determine the biodiesel content in diesel fuel. Different from the method reported in the literature, using a pair of two identical screen printed carbon paste electrodes, in the present work we used two electrodes made from 304 stainless steel with dimensions of 0.8x0.3cm for the EIS measurements. Improved results were obtained in terms of sensitivity, stability of measurements, electrode reuse, and cost. In this procedure the charge transfer resistance is proportionally related to the biodiesel content, which is used to construct a calibration curve for the analysis of biodiesel content. The procedure was validated by an official method, using two samples, being one of them, certified through an official interlaboratory program of the Brazilian government (Interlaboratory Program for Biodiesel of National Agency of Petroleum, Natural Gas and Biofuels (PIB)/ANP). Good results were obtained in terms of recovery (102.6%-102.8%), precision (coefficient of variation lower than 2.3%), limit of detection (0.24%) and limit of quantification (0.80%). These results indicate that this method is sufficiently suitable as an alternative method to the official method for determining biodiesel content in commercial diesel fuel.en
dc.description.affiliationFed Univ MaranhAo UFMA, Dept Chem Technol, LPQA LAPQAP, Sao Luis, MA, Brazil
dc.description.affiliationSao Paulo State Univ Julio de Mesquita Filho, Inst Chem, Araraquara, SP, Brazil
dc.description.affiliationUniv Fed Maranhao, Sao Luis, MA, Brazil
dc.description.affiliationNatl Res Council Canada NRC, Ottawa, ON, Canada
dc.description.affiliationUnespSao Paulo State Univ Julio de Mesquita Filho, Inst Chem, Araraquara, SP, Brazil
dc.description.sponsorshipFINEP
dc.description.sponsorshipFAPEMA
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFINEP: RECOL 05
dc.description.sponsorshipIdFAPEMA: UNIVERSAL-00799/14
dc.description.sponsorshipIdFAPEMA: INFRA-03578/13
dc.description.sponsorshipIdCNPq: PQ 2014
dc.description.sponsorshipIdCNPq: 311578/2014-4
dc.format.extent814-820
dc.identifierhttp://dx.doi.org/10.1002/elan.201600504
dc.identifier.citationElectroanalysis. Weinheim: Wiley-v C H Verlag Gmbh, v. 29, n. 3, p. 814-820, 2017.
dc.identifier.doi10.1002/elan.201600504
dc.identifier.issn1040-0397
dc.identifier.urihttp://hdl.handle.net/11449/159417
dc.identifier.wosWOS:000395770500022
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofElectroanalysis
dc.relation.ispartofsjr0,692
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectstainless steel electrode
dc.subjectbiodiesel content
dc.subjectelectrochemical impedance spectroscopy
dc.subjectbiodiesel
dc.subjectdiesel blends
dc.titleStainless Steel Electrodes to Determine Biodiesel Content in Petroleum Diesel Fuel by Electrochemical Impedance Spectroscopyen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell

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