2026-06-06T08:36:14Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/53392022-05-31T22:42:05Zcom_10259_3844com_10259_5086com_10259_2604col_10259_3845

Revenga Parra, M. c892ad5e-9a0d-4f85-a083-7901671e9e73 500 Robledo, S. N. 2bb08e98-c178-445c-84df-45b7ba95d9ed 500 Martínez Periñán, E. 96eb2522-f375-48de-8f79-762eb881d653 500 Qonzález Quirós, M. M. 715885ba-6a48-4b95-a8b0-a2e94d2da65f 500 Colina Santamaría, Álvaro 122 500 Heras Vidaurre, Aránzazu 273 500 Pariente, F. bfc67027-32f3-4364-9f29-e3b2989b5c32 500 Lorenzo, E. 243c7386-93cb-4f72-adb2-9868a1e60699 500 2020-06-10T12:01:17Z 2020-06-10T12:01:17Z 2020-06 0925-4005 http://hdl.handle.net/10259/5339 10.1016/j.snb.2020.127848 The 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%. Ministerio 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). application/pdf eng Elsevier Sensors and Actuators B: Chemical. 2020, V. 312, 127848 https://doi.org/10.1016/j.snb.2020.127848 info:eu-repo/grantAgreement/JCyL/BU297P18 info:eu-repo/grantAgreement/MICINN/CTQ2017-84309-C2-1-R info:eu-repo/grantAgreement/MICINN/RED2018-102412-T Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Schiff base complexes Glucose and fructose direct determination Chemometric tools Electrochemical sensor PLSR Química analítica Chemistry, Analytic Direct determination of monosaccharides in honey by coupling a sensitive new Schiff base Ni complex electrochemical sensor and chemometric tools info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Sensors and Actuators B: Chemical 312 127848 TEXT Revenga-sabc_2020.pdf.txt Revenga-sabc_2020.pdf.txt Extracted text text/plain 63285 https://riubu.ubu.es/bitstream/10259/5339/5/Revenga-sabc_2020.pdf.txt 213037d1e400d957b762f7d668ed53fe MD5 5 THUMBNAIL Revenga-sabc_2020.pdf.jpg Revenga-sabc_2020.pdf.jpg IM Thumbnail image/jpeg 3714 https://riubu.ubu.es/bitstream/10259/5339/4/Revenga-sabc_2020.pdf.jpg 8dec49a9b243e6820bf75f1caa8a0e70 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/5339/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/5339/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Revenga-sabc_2020.pdf Revenga-sabc_2020.pdf application/pdf 1082383 https://riubu.ubu.es/bitstream/10259/5339/1/Revenga-sabc_2020.pdf 2f691029a824494e5eacf2911dc81a6e MD5 1 10259/5339 oai:riubu.ubu.es:10259/5339 2022-06-01 00:42:05.0 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es RWwgYXV0b3IgY29tbyDDum5pY28gdGl0dWxhciBkZSBsb3MgZGVyZWNob3MgZGUgcHJvcGllZGFkIGludGVsZWN0dWFsIGRlIGxhIG9icmEsIG8gZGlzcG9uaWVuZG8gZGUgbG9zIGRlYmlkb3MgcGVybWlzb3MgZGUgbG9zIG90cm9zIHRpdHVsYXJlcywgc2kgbG9zIGh1YmllcmEsIHkgZW4gdmlydHVkIGRlIGxvcyBkZXJlY2hvcyBxdWUgbGUgY29uZmllcmUgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3IsIA0KQVVUT1JJWkEgYSBsYSBVbml2ZXJzaWRhZCBkZSBCdXJnb3MgYSBkaWZ1bmRpciwgZGUgbWFuZXJhIGdyYXR1aXRhLCBlbCBjb250ZW5pZG8gZGUgbG9zIGFyY2hpdm9zIGRpZ2l0YWxlcyBxdWUgY29ycmVzcG9uZGVuIGFsIGRvY3VtZW50byBkZXNjcml0byBhbnRlcmlvcm1lbnRlLCBjb24gY2Fyw6FjdGVyIG5vIGV4Y2x1c2l2byB5IGRlIG1hbmVyYSBww7pibGljYSBlbiBhY2Nlc28gYWJpZXJ0byBhIHRyYXbDqXMgZGUgSW50ZXJuZXQsIHBhcmEgbG8gcXVlIGxhIEJpYmxpb3RlY2EgcHJvY2VkZXLDoSBhIGFyY2hpdmFybG9zIGVuIGVsIFJlcG9zaXRvcmlvIEluc3RpdHVjaW9uYWwuIEFzaW1pc21vIGF1dG9yaXphIGEgbGEgVW5pdmVyc2lkYWQgZGUgQnVyZ29zIGEgcmVhbGl6YXIgbGFzIHRyYW5zZm9ybWFjaW9uZXMgbmVjZXNhcmlhcyBkZSBmb3JtYXRvLCBubyBkZSBjb250ZW5pZG8sIHBhcmEgZ2FyYW50aXphciBsYSBwcmVzZXJ2YWNpw7NuIHkgZWwgYWNjZXNvIGVuIGVsIGZ1dHVyby4NCg0KRWwgYXV0b3IgZGlzcG9uZSwgZW4gdG9kbyBjYXNvLCBkZWwgZGVyZWNobyBhIHJldm9jYXIgZXN0YSBhdXRvcml6YWNpw7NuLg0KDQpMYSBjZXNpw7NuIGRlIGRlcmVjaG9zIGRlIGVzdGEgb2JyYSBzZSBlbmN1ZW50cmEgc3VqZXRhIGEgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3Iu