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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/25826
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dc.contributor.authorCastilho, Michelle de Souza-
dc.contributor.authorStradiotto, Nelson Ramos-
dc.date.accessioned2014-05-20T14:19:19Z-
dc.date.accessioned2016-10-25T17:41:01Z-
dc.date.available2014-05-20T14:19:19Z-
dc.date.available2016-10-25T17:41:01Z-
dc.date.issued2008-02-15-
dc.identifierhttp://dx.doi.org/10.1016/j.talanta.2007.10.027-
dc.identifier.citationTalanta. Amsterdam: Elsevier B.V., v. 74, n. 5, p. 1630-1634, 2008.-
dc.identifier.issn0039-9140-
dc.identifier.urihttp://hdl.handle.net/11449/25826-
dc.identifier.urihttp://acervodigital.unesp.br/handle/11449/25826-
dc.description.abstractin this work. nickel hexacyanoferrate-modified electrode was developed to determine potassium ions in biodiesel by potentiometry. The modified electrodes exhibit a linear response to potassium ions in the concentration range of 4.0 x 10(-5) to 1.0 x 10(-2) mol L-1, with a detection limit of 1.9 x 10(-5) mol L-1. and a near-Nernstian slope (53-55 mV per decade) at 25 degrees C. The method developed in this work was compared with flame photometry and the potassium concentration found in biodiesel showed that the modified electrode method gives results similar to those obtained by flame photometry. (C) 2007 Elsevier B.V. All rights reserved.en
dc.format.extent1630-1634-
dc.language.isoeng-
dc.publisherElsevier B.V.-
dc.sourceWeb of Science-
dc.subjectbiodieselen
dc.subjectmodified electrodesen
dc.subjectnickel(II) hexacyanoferrateen
dc.subjectpotassium ionsen
dc.titleDetermination of potassium ions in biodiesel using a nickel(II) hexacyanoferrate-modified electrodeen
dc.typeoutro-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUNESP, Dept Quim Analit, Araraquara, SP, Brazil-
dc.description.affiliationUnespUNESP, Dept Quim Analit, Araraquara, SP, Brazil-
dc.identifier.doi10.1016/j.talanta.2007.10.027-
dc.identifier.wosWOS:000253514700074-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofTalanta-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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