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dc.contributor.authorPortugal Gómez, Paula 
dc.contributor.authorAlonso Lomillo, Mª Asunción 
dc.contributor.authorDomínguez Renedo, Olga 
dc.date.accessioned2024-06-19T11:53:13Z
dc.date.available2024-06-19T11:53:13Z
dc.date.issued2024-04-01
dc.identifier.issn0039-9140
dc.identifier.urihttp://hdl.handle.net/10259/9291
dc.description.abstract4-ethylphenol and 4-ethylguaicol levels in wine are associated to organoleptic defects that cause consumer rejection accompanied by significant economic losses for producers. Thus, electrochemical sensors based on screen-printed carbon electrodes (SPCEs) modified with activated fullerene C60 (AC60) have been developed for the analysis of both phenols by direct headspace amperometric measurements. Upon optimization of the experimental variables affecting the sensors performance, the AC60/SPCE sensors presented linearity ranges from 9.9 to 65.4 μg/L and from 19.6 to 107.1 μg/L for 4-ethylphenol and 4-ethylguaicol, respectively. The achieved detection capacities were 10.3 μg/L (4-ethylphenol) and 19.6 μg/L (4-ethylguaicol), with a reproducibility of 6.3 % and 9.1 % (n = 3), respectively. In addition, dual-working AC60/SPCE devices were developed for the simultaneous analysis of both phenols using different working potentials for each electrode. The dual systems were successfully applied in the analysis of different spiked wine samples, obtaining good recoveries ranging from 94 to 108 %.en
dc.description.sponsorshipAuthors would like to acknowledge funding from Agencia Estatal de Investigación/Ministerio de Ciencia e Innovación (PID2020-117095RB-I00/AEI/10.13039/501100011033).en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieren
dc.relation.ispartofTalanta. 2024, V. 270, 125543en
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectDual screen-printed electrodesen
dc.subjectFullerene C60en
dc.subject4-Ethylphenolen
dc.subject4-Ethylguaicolen
dc.subjectWineen
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.subject.otherQuímica físicaes
dc.subject.otherChemistry, Physical and theoreticalen
dc.titleSimultaneous determination of 4-ethylphenol and 4-ethylguaicol on C60 modified dual screen-printed electrochemical sensorsen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.talanta.2023.125543es
dc.identifier.doi10.1016/j.talanta.2023.125543
dc.journal.titleTalantaen
dc.volume.number270es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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