Development of an electrochemical sensor for potassium ions based on KSr(2)Nb(5)O(15) modified electrode

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dc.contributor.authorTeixeira, Marcos F. S. [UNESP]
dc.contributor.authorFreitas, Bruno H. [UNESP]
dc.contributor.authorSeraphim, Patricia M.
dc.contributor.authorSalmazo, Leandra O. [UNESP]
dc.contributor.authorNobre, Marcos A. [UNESP]
dc.contributor.authorLanfredi, Silvania [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:23:13Z
dc.date.available2014-05-20T13:23:13Z
dc.date.issued2009-01-01
dc.description.abstractIn the work described by this paper, we studied the development of a selective potassium ion sensor constituted of a carbon paste electrode modified (CPEM) with a novel KSr(2)Nb(2)O(15). The material KSr(2)Nb(2)O(15) is an oxide with the tetragonal tungsten bronze structure (TTB) type are in forefront both in the area of research as well as in industrial applications. The sensor response to potassium ions was linear in the concentration range 1.26 x 10(-5) at 1.62 x 10(-3) mol L(-1) (E (mV) = 32.7 + 51.1 log [K(+)]). The sensor based KSr(2)Nb(2)O(15), of the TTB-type presented very good potentiometric response, with a slope of 51.1 mV/dec (at 25 degrees C) and detection limit for the potassium ions of 7.27 x 10(-5) mol.L(-1)en
dc.description.affiliationUniv State São Paulo UNESP, Dept Phys Chem & Biol, Fac Sci & Technol, Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUniv State São Paulo UNESP, Dept Phys Chem & Biol, Fac Sci & Technol, Presidente Prudente, SP, Brazil
dc.format.extent293-296
dc.identifierhttp://dx.doi.org/10.1016/j.proche.2009.07.073
dc.identifier.citationProceedings of The Eurosensors Xxiii Conference. Amsterdam: Elsevier B.V., v. 1, n. 1, p. 293-296, 2009.
dc.identifier.doi10.1016/j.proche.2009.07.073
dc.identifier.fileWOS000275995600209.pdf
dc.identifier.issn1876-6196
dc.identifier.lattes0411008599070871
dc.identifier.orcid0000-0003-4843-3975
dc.identifier.orcid0000-0003-2145-6640
dc.identifier.urihttp://hdl.handle.net/11449/6971
dc.identifier.wosWOS:000275995600209
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofProceedings of The Eurosensors XXIII Conference
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPotassium ion sensoren
dc.subjectTetragonal tungsten bronze structureen
dc.subjectPotentiometric detectionen
dc.titleDevelopment of an electrochemical sensor for potassium ions based on KSr(2)Nb(5)O(15) modified electrodeen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.lattes0411008599070871[3]
unesp.author.orcid0000-0003-4843-3975[5]
unesp.author.orcid0000-0003-2145-6640[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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