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, Jose
dc.contributor.authorGidi, Leyla
dc.contributor.authorCavieres, Valentina
dc.contributor.authorJesus Aguirre, Maria
dc.contributor.authorRamirez, Galo
dc.contributor.authorArce, Roxana
dc.date.accessioned2025-01-20T21:01:00Z
dc.date.available2025-01-20T21:01:00Z
dc.date.issued2022
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.
dc.fuente.origenWOS
dc.identifier.doi10.3390/catal12121675
dc.identifier.eissn2073-4344
dc.identifier.urihttps://doi.org/10.3390/catal12121675
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/92799
dc.identifier.wosidWOS:000902246200001
dc.issue.numero12
dc.language.isoen
dc.revistaCatalysts
dc.rightsacceso restringido
dc.subjectsulfite reduction
dc.subjectcarbon paste electrode
dc.subjectionic liquids (IL)
dc.subjectmulti-walled carbon nanotube (MWCNT)
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleElectrochemical Detection of Sulfite by Electroreduction Using a Carbon Paste Electrode Binder with N-octylpyridinium Hexafluorophosphate Ionic Liquid
dc.typeartículo
dc.volumen12
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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