Electrochemical Detection of Sulfite by Electroreduction Using a Carbon Paste Electrode Binder with N-octylpyridinium Hexafluorophosphate Ionic Liquid

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dc.contributor.authorBustos Villalobos, Maicol
dc.contributor.authorIbarra, José
dc.contributor.authorGidi, Leyla
dc.contributor.authorCavieres, Valentina
dc.contributor.authorAguirre, María Jesús
dc.contributor.authorRamírez, Galo
dc.contributor.authorArce, Roxana
dc.date.accessioned2023-04-03T16:04:42Z
dc.date.available2023-04-03T16:04:42Z
dc.date.issued2022-12
dc.descriptionIndexación: Scopus.es
dc.description.abstractSulfite is a widely used additive in food and beverages, and its maximum content is limited by food regulations. For this reason, determining the sulfite concentration using fast, low-cost techniques is a current challenge. This work describes the behavior of a sensor based on an electrode formed by carbon nanotubes an ionic liquid as binder, which by electrochemical reduction, allows detecting sulfite with a detection limit of 1.6 ± 0.05 mmol L−1 and presents adequate sensitivity. The advantage of detecting sulfite by reduction and not by oxidation is that the presence of antioxidants such as ascorbic acid does not affect the measurement. The electrode shown here is low-cost and easy to manufacture, robust, and stable. © 2022 by the authors.es
dc.description.urihttps://www.mdpi.com/2073-4344/12/12/1675
dc.identifier.citationCatalysts, Volume 12, Issue 12December 2022 Article number 1675es
dc.identifier.doi10.3390/catal12121675
dc.identifier.issn2073-4344
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/48122
dc.language.isoenes
dc.publisherMDPIes
dc.rights.licenseAtribución 4.0 Internacional (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectCarbon paste electrodees
dc.subjectIonic liquids (IL)es
dc.subjectMulti-walled carbon nanotube (MWCNT)es
dc.subjectSulfite reductiones
dc.titleElectrochemical Detection of Sulfite by Electroreduction Using a Carbon Paste Electrode Binder with N-octylpyridinium Hexafluorophosphate Ionic Liquides
dc.typeArtículoes
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