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dc.contributor.authorLobo, Fabiana A.-
dc.contributor.authorGoveia, Danielle-
dc.contributor.authorOliveira, Adriana P.-
dc.contributor.authorRomao, Luciane P. C.-
dc.contributor.authorFraceto, Leonardo F.-
dc.contributor.authorDias Filho, Newton L.-
dc.contributor.authorRosa, Andre H.-
dc.date.accessioned2014-05-20T13:29:47Z-
dc.date.accessioned2016-10-25T16:49:02Z-
dc.date.available2014-05-20T13:29:47Z-
dc.date.available2016-10-25T16:49:02Z-
dc.date.issued2011-01-01-
dc.identifierhttp://dx.doi.org/10.1016/j.fuel.2010.09.009-
dc.identifier.citationFuel. Oxford: Elsevier B.V., v. 90, n. 1, p. 142-146, 2011.-
dc.identifier.issn0016-2361-
dc.identifier.urihttp://hdl.handle.net/11449/10081-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/10081-
dc.description.abstractThis paper proposes a low cost, simple, fast method for determining Ni and Cd in biodiesel samples by graphite furnace atomic absorption spectrometry (GFAAS). The method was evaluated in biodiesel from different sources. Tungsten was used as a permanent modifier and the samples were prepared in the form of microemulsions, by mixing about 0.5 g of biodiesel with 5 g of surfactant (Triton X-100) in volumetric flasks and completing the volume with HNO(3) 1% (v/v). The detection limits obtained for Ni and Cd in microemulsions were <= 0.9 and 0.1 mu g L(-1), respectively. The relative standard deviation (% R. S. D., n = 12) was <= 8.20% for Ni (washed animal fat sample) and <= 4.71% for Cd (sunflower oil sample). Accuracy was checked based on addition and recovery experiments, which yielded recovery rates varying from 93% to 108% for Ni and from 98% to 116% for Cd. Sample preparation is rapid and easy, and the use of an inorganic standard for calibration makes this sample preparation procedure suitable for routine applications. (C) 2010 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.description.sponsorshipFundação para o Desenvolvimento da UNESP (FUNDUNESP)-
dc.format.extent142-146-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectMetalsen
dc.subjectBiodieselen
dc.subjectMicroemulsionsen
dc.subjectAbsorption spectrometryen
dc.titleDevelopment of a method to determine Ni and Cd in biodiesel by graphite furnace atomic absorption spectrometryen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.contributor.institutionUniversidade Federal de Ouro Preto (UFOP)-
dc.contributor.institutionIFMT Inst Fed Educ Ciência & Tecnol Mato Grosso-
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)-
dc.description.affiliationUniv Estadual Paulista, UNESP Dept Engn Ambiental, BR-18087180 Sorocaba, SP, Brazil-
dc.description.affiliationUniv Fed Ouro Preto, UFOP Dept Ciencias Exatas & Aplicadas, BR-35931026 Joao Monlevade, MG, Brazil-
dc.description.affiliationIFMT Inst Fed Educ Ciência & Tecnol Mato Grosso, BR-78050560 Cuiaba, MT, Brazil-
dc.description.affiliationUniv Fed Sergipe, UFS Ctr Ciencias Exatas & Tecnol, BR-49000100 Sergipe, SE, Brazil-
dc.description.affiliationUniv Estadual Paulista, UNESP Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, UNESP Dept Engn Ambiental, BR-18087180 Sorocaba, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, UNESP Dept Fis & Quim, BR-15385000 Ilha Solteira, SP, Brazil-
dc.identifier.doi10.1016/j.fuel.2010.09.009-
dc.identifier.wosWOS:000284150200019-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofFuel-
dc.identifier.orcid0000-0002-2042-018Xpt
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