Otimização da preparação de eletrodo de pasta de carbono contendo riboflavina imobilizada em suporte inorgânico

Optimization of the carbon paste electrode preparation containing riboflavin immobilized on an inorganic support

dc.creatorPereira, Arnaldo César
dc.creatorKubota, Lauro Tatsuo
dc.date2004-10-01
dc.date2014-07-17T14:51:52Z
dc.date2015-11-25T20:07:30Z
dc.date2014-07-17T14:51:52Z
dc.date2015-11-25T20:07:30Z
dc.date.accessioned2018-03-28T20:38:50Z
dc.date.available2018-03-28T20:38:50Z
dc.identifierQuímica Nova. Sociedade Brasileira de Química, v. 27, n. 5, p. 725-729, 2004.
dc.identifier0100-4042
dc.identifierS0100-40422004000500009
dc.identifier10.1590/S0100-40422004000500009
dc.identifierhttp://dx.doi.org/10.1590/S0100-40422004000500009
dc.identifierhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422004000500009
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/23636
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/23636
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1233190
dc.descriptionThe aim of this work was to optimize the preparation of electrodes with riboflavin (RF) immobilized on a silica surface modified with niobium oxide and carbon paste. Electrode preparation was optimized employing a factorial design consisting of two levels and three factors. The electrochemical properties of immobilized RF were investigated by cyclic voltammetry. The factorial analysis was carried out analysing the current intensity (Ipa). It was possible to optimize the electrode to get the best reversibility in the redox process, i. e. the lowest separation between anodic and cathodic peak potentials and a current ratio close to unity. The concentration of supporting electrolyte has a small effect. The proportion has the highest effect and the interaction factor between proportion and mixture has also a significant effect on the current intensity.
dc.description725
dc.description729
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.languagept
dc.publisherSociedade Brasileira de Química
dc.relationQuímica Nova
dc.rightsaberto
dc.sourceSciELO
dc.subjectcarbon paste electrode
dc.subjectoptimization of electrochemical properties
dc.subjectfactorial design
dc.titleOtimização da preparação de eletrodo de pasta de carbono contendo riboflavina imobilizada em suporte inorgânico
dc.titleOptimization of the carbon paste electrode preparation containing riboflavin immobilized on an inorganic support
dc.typeArtículos de revistas


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