A novel hybrid composite formed by reaction of 4,5-diphenyl-2-imidazolethiol with hexacyanoferrate (iii) and subsequent reaction with copper (ii): preparation, characterization and a voltammetric application for determination of l-glutatione

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSilvestrini, Daniela Rodrigues
dc.creatorBicalho, Urquisa de Oliveira
dc.creatorCarmo, Devaney Ribeiro do
dc.date2014-12-03T13:11:51Z
dc.date2016-10-25T20:15:22Z
dc.date2014-12-03T13:11:51Z
dc.date2016-10-25T20:15:22Z
dc.date2014-08-01
dc.date.accessioned2017-04-06T06:35:39Z
dc.date.available2017-04-06T06:35:39Z
dc.identifierInternational Journal of Electrochemical Science. Belgrade: Esg, v. 9, n. 8, p. 4114-4128, 2014.
dc.identifier1452-3981
dc.identifierhttp://hdl.handle.net/11449/113646
dc.identifierhttp://acervodigital.unesp.br/handle/11449/113646
dc.identifierWOS:000338320000004
dc.identifierWOS000338320000004.pdf
dc.identifierhttp://www.electrochemsci.org/papers/vol9/90804114.pdf
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/924387
dc.descriptionA novel Hybrid composite formed by interaction of 4,5-Diphenyl-2-Imidazolethiol and copper hexacyanoferrate (III) (CuHDIT) was characterized by Fourier transform infrared spectra (FTIR), x-ray diffraction (XRD), scanning electron and energy dispersive (SEM). CuHDIT was incorporated into a graphite paste electrode and the electrochemical studies were conducted with cyclic voltammetry. The cyclic voltammogram of the modified graphite paste electrode with CuHDIT, showed two redox couple with formal potential E-theta'=0.24 and 0.74 V (vs Ag/AgCl(sat.), KCl, 1.0 mol L-1; v = 20 mV s(-1)), attributed to the Cu+/Cu2+ and Fe2+(CN) 6/Fe3+(CN)(6) redox processes respectively. The redox second redox couple (0.74V) presents an electrocatalytic response for determination of L-Glutatione. The modified electrode showed a linear response from 5.0x10(-5) to 9.0x10(-4) mol L-1. The method showed a detection limit of 5.33x10(-5) mol L-1 with a relative standard deviation of +/- 2% (n = 3) and amperometric sensitivity of 12.52 mA mol L-1.
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageeng
dc.publisherEsg
dc.relationInternational Journal of Electrochemical Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject4,5-Diphenyl-2-Imidazolethiol
dc.subjectHexacyanoferrate (III)
dc.subjectL-glutatione
dc.subjectcyclic voltammetry
dc.subjectgraphite paste electrode
dc.titleA novel hybrid composite formed by reaction of 4,5-diphenyl-2-imidazolethiol with hexacyanoferrate (iii) and subsequent reaction with copper (ii): preparation, characterization and a voltammetric application for determination of l-glutatione
dc.typeOtro


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