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dc.contributor.authorGuirado Moreno, José Carlos 
dc.contributor.authorGonzález Ceballos, Lara 
dc.contributor.authorCarreira Barral, Israel 
dc.contributor.authorIbeas Cortes, Saturnino 
dc.contributor.authorFernández Muiño, Miguel Ángel 
dc.contributor.authorSancho Ortiz, María Teresa 
dc.contributor.authorGarcía Pérez, José Miguel 
dc.contributor.authorVallejos Calzada, Saúl 
dc.date.accessioned2022-10-05T11:04:24Z
dc.date.available2022-10-05T11:04:24Z
dc.date.issued2023-01
dc.identifier.issn1386-1425
dc.identifier.urihttp://hdl.handle.net/10259/7084
dc.description.abstractWe report on an innovative method to measure the Zn(II) concentration in commercial pet food samples, both wet and dry food. It is based on a colorimetric sensory polymer prepared from commercial monomers and 0.5 % of a synthetic monomer having a quinoline sensory core (N-(8-(2-azidoacetamido)quinolin-5-yl)methacrylamide). We obtained the sensory polymer as crosslinked films by thermally initiated bulk radical polymerization of the monomers of 100 μm thickness, which we punched into Ø6 mm sensory discs. The immersion of the discs in water solutions containing Zn(II) turned the fluorescence on, allowing for the titration of this cation using the G parameter of a digital picture taken to the discs. The limits of detection and quantification were 29 and 87 µg/L, respectively. Furthermore, we measured the concentration of Zn(II) even in the presence of other cations, detecting no significant interferences. Thus, in a further step, we obtained the concentration of Zn(II) from 15 commercial pet food samples, ranging from 19 to 198 mg/kg, following a simple extraction procedure and contacting the extractant with our sensory discs. These results were contrasted with that obtained by ICP-MS as a reference method.en
dc.description.sponsorshipSpanish Agencia Estatal de Investigación (State Research Agency) (grant PID2020-113264RB-I00/AEI/10.13039/501100011033).en
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 2023, V. 284, 121820en
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectZinc detectionen
dc.subjectZinc in fooden
dc.subjectSensory polymersen
dc.subjectFluorescent probesen
dc.subjectRGB parametersen
dc.subject.otherQuímica orgánicaes
dc.subject.otherChemistry, Organicen
dc.subject.otherAlimentoses
dc.subject.otherFooden
dc.titleSmart sensory polymer for straightforward Zn(II) detection in pet food samplesen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.saa.2022.121820es
dc.identifier.doi10.1016/j.saa.2022.121820
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113264RB-I00/ES/DISEÑO, SINTESIS Y CARACTERIZACION DE POLIMEROS INTELIGENTES. APLICACION DE SENSORES QUIMICOS POLIMERICOS EN CONTROL Y SEGURIDAD ALIMENTARIA Y EN EL AMBITO SANITARIO.es
dc.journal.titleSpectrochimica Acta Part A: Molecular and Biomolecular Spectroscopyen
dc.volume.number284es
dc.page.initial121820es
dc.type.hasVersioninfo:eu-repo/semantics/publishedVersiones


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