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dc.contributor.authorRevenga Parra, M.
dc.contributor.authorRobledo, S. N.
dc.contributor.authorMartínez Periñán, E.
dc.contributor.authorQonzález Quirós, M. M.
dc.contributor.authorColina Santamaría, Álvaro 
dc.contributor.authorHeras Vidaurre, Aránzazu 
dc.contributor.authorPariente, F.
dc.contributor.authorLorenzo, E.
dc.date.accessioned2020-06-10T12:01:17Z
dc.date.available2020-06-10T12:01:17Z
dc.date.issued2020-06
dc.identifier.issn0925-4005
dc.identifier.urihttp://hdl.handle.net/10259/5339
dc.description.abstractThe determination and quantification of saccharides is of considerable importance in the food industry among other fields. In this work, we describe for the first time the preparation of the Schiff base Ni complex, NiII-(N,N’-bis(2,3-dihydroxybenzylidene)-1,2-diaminobenzene) (Ni(II)-2,3dhS) obtained by reaction of the tetradentate Schiff base ligand containing ortho quinone functional groups (N,N’-bis(2,3-dihydroxybenzylidene)-1,2-diaminobenzene) and Ni2+, as well as its application in the development of an electrochemical sensor. Coupled to chemometric tools, the sensor allowed the direct determination of glucose and fructose in honey, without the need of previous separation steps or chromatographic techniques. For this purpose, the new Schiff base Ni complex has been electropolymerized onto screen-printed electrodes modified with carbon nanotubes. The electropolymerization process has been exhaustively characterized by operando spectroelectrochemical techniques to confirm the generation of the desired polymer. The resulting modified electrodes present a strong electrocatalytic activity towards the oxidation of glucose and fructose in alkaline solution and have been employed in combination with partial least squares regression (PLSR) to resolve mixtures of glucose and fructose in a complex matrix, as honey. The multivariate model was based on PLSR analysis and showed good predictive capability for the two analytes in sample standard honey with an average error of 8% and relative standard deviations below 9%.en
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidades of Spain (CTQ2017-84309-C2-1-R; RED2018-102412-T), Comunidad Autónoma de Madrid (TRANSNANOAVANSENS Program), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) and Secretaría de Ciencia y Técnica (SECyT) from Universidad Nacional de Río Cuarto. Authors also acknowledge the financial support from the Spanish Ministerio de Economía y Competitividad (Grants CTQ2017-83935-R-AEI/FEDERUE) and Junta de Castilla y León (Grant BU297P18).es
dc.format.mimetypeapplication/pdf
dc.language.isoenges
dc.publisherElsevieres
dc.relation.ispartofSensors and Actuators B: Chemical. 2020, V. 312, 127848es
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSchiff base complexesen
dc.subjectGlucose and fructose direct determinationen
dc.subjectChemometric toolsen
dc.subjectElectrochemical sensoren
dc.subjectPLSRen
dc.subject.otherQuímica analíticaes
dc.subject.otherChemistry, Analyticen
dc.titleDirect determination of monosaccharides in honey by coupling a sensitive new Schiff base Ni complex electrochemical sensor and chemometric toolsen
dc.typeinfo:eu-repo/semantics/articlees
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.relation.publisherversionhttps://doi.org/10.1016/j.snb.2020.127848es
dc.identifier.doi10.1016/j.snb.2020.127848
dc.relation.projectIDinfo:eu-repo/grantAgreement/JCyL/BU297P18
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN/CTQ2017-84309-C2-1-R
dc.relation.projectIDinfo:eu-repo/grantAgreement/MICINN/RED2018-102412-T
dc.journal.titleSensors and Actuators B: Chemicales
dc.volume.number312es
dc.page.initial127848es
dc.type.hasVersioninfo:eu-repo/semantics/acceptedVersiones


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