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dc.contributor.authorMuñoz, Josees_ES
dc.contributor.authorMontes, Raqueles_ES
dc.contributor.authorBastos-Arrieta, Julioes_ES
dc.contributor.authorGuardingo, Mireiaes_ES
dc.contributor.authorBusqué, Félixes_ES
dc.contributor.authorRuiz Molina, Danieles_ES
dc.contributor.authorPalet, Cristinaes_ES
dc.contributor.authorGarcía-Orellana, Jordies_ES
dc.contributor.authorBaeza, Mireiaes_ES
dc.date.accessioned2020-01-28T13:00:08Z-
dc.date.available2020-01-28T13:00:08Z-
dc.date.issued2018-
dc.identifier.citationSensors and Actuators B: Chemical 273: 1807-1815 (2018)es_ES
dc.identifier.issn0925-4005-
dc.identifier.urihttp://hdl.handle.net/10261/199086-
dc.description.abstractThis article reports a novel electrochemical recognition platform based on a nanocomposite carbon paste electrode containing carbon nanotubes modified with gold nanoparticles carrying a thiolated catechol for the fast amperometric determination of uranyl ion (UO22+) in water. Recognition of UO22+ is accomplished by supramolecular chemistry due to the formation of an inclusion complex between catechol and UO22+. The amperometric device operates at –0.40 V vs. Ag/AgCl, where the reduction of UO22+ takes place on the electrode surface, covering a linear range from 0.49 to 170 μg L−1 UO22+ in a 0.1 M boric acid buffer solution at pH 5.3. The developed sensing system presents good response towards UO22+ in aqueous environmental samples, with good selectivity over other browsed cations and can be easily reset by simple polishing. This platform has demonstrated to be a potential alternative regarding to the common standard bench-top analytical techniques for the development of in-field devices for in-situ monitoring.es_ES
dc.description.sponsorshipThis work was supported by the Spanish project CTQ2012-36165 and CTQ2013-41161-R. Authors also want to thank the support of the Generalitat de Catalunya to GSB (2014-SGR-837), MERS (2014-SGR-1356) and GTS (2014-SGR-1152). Real samples from mine wells rich in uranyl ion were kindly supplied by Berkeley Energia and Consejo de Seguridad Nuclear (National Security Council, CSN-2015). Dr. J. Muñoz gratefully acknowledges the “Juan de la Cierva” programme.es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.rightsclosedAccesses_ES
dc.subjectUranyles_ES
dc.subjectSupramolecular chemistryes_ES
dc.subjectCarbon paste electrodees_ES
dc.subjectGold nanoparticleses_ES
dc.subjectWater pollutantses_ES
dc.subjectAmperometryes_ES
dc.titleCarbon nanotube-based nanocomposite sensor tuned with a catechol as novel electrochemical recognition platform of uranyl ion in aqueous sampleses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.snb.2018.07.093-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.snb.2018.07.093es_ES
dc.contributor.funderGeneralitat de Catalunyaes_ES
dc.contributor.funderMinisterio de Economía y Competitividad (España)es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100002809es_ES
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