2026-04-28T11:28:31Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/53302022-04-07T11:23:15Zcom_10259_4376com_10259_5086com_10259_2604col_10259_4377

Domínguez Renedo, Olga 159 500 Navarro Cuñado, A. Marta 389 500 Arnáiz Lozano, Víctor a4effd67-f3a6-4c3e-a2ba-80894771f6e0 500 Alonso Lomillo, Mª Asunción 21 500 2020-06-08T12:45:54Z 2020-06-08T12:45:54Z 2020-01 0039-9140 http://hdl.handle.net/10259/5330 10.1016/j.talanta.2019.120351 This work describes the development of an electrochemical sensor based on a molecularly imprinted polymer (MIP) for sensitive and selective determination of 4-ethylphenol in wine. The sensor has been built by means of the electrosynthesis of the MIP on a glassy carbon electrode surface using cyclic voltammetry. The electropolymerization has been performed in the presence of 4-ethylphenol and pyrrole as template molecule and functional monomer, respectively. The influence of the molar ratios of template molecules to functional pyrrole monomers and the time needed to remove the template have been optimized taking into account the differential pulse voltammetric response of 4-ethylphenol. Under the optimal experimental conditions the developed MIP/GCE sensor shows good capability of detection (0.2 μM, α = β = 0.05) and reproducibility (3.0%) in the concentration range from 0.2 to 34.8 μM. The influence of possible interfering species in the analytical response has been studied and the sensor has successfully been applied to the determination of 4-ethylphenol in different wine samples. Junta de Castilla y León (BU018G19) application/pdf eng Elsevier Talanta. 2020, V. 207, 120351 https://doi.org/10.1016/j.talanta.2019.120351 info:eu-repo/grantAgreement/JCyL/BU018G19 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess 4-ethylphenol Molecularly imprinted polymer Polypyrrole Electrochemical sensor Wine Química analítica Chemistry, Analytic Molecularly imprinted polypyrrole based electrochemical sensor for selective determination of 4-ethylphenol info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Talanta 207 120351 TEXT Dominguez-talanta_2020.pdf.txt Dominguez-talanta_2020.pdf.txt Extracted text text/plain 39187 https://riubu.ubu.es/bitstream/10259/5330/5/Dominguez-talanta_2020.pdf.txt 6ab4446e238fde7e0a35bc6a5102d01e MD5 5 THUMBNAIL Dominguez-talanta_2020.pdf.jpg Dominguez-talanta_2020.pdf.jpg IM Thumbnail image/jpeg 4460 https://riubu.ubu.es/bitstream/10259/5330/4/Dominguez-talanta_2020.pdf.jpg c7f72e5a52aa483879fdee5a17035305 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 998 https://riubu.ubu.es/bitstream/10259/5330/3/license.txt aa90105e1c90a1b4fe810649aa967b7d MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/5330/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Dominguez-talanta_2020.pdf Dominguez-talanta_2020.pdf application/pdf 1583237 https://riubu.ubu.es/bitstream/10259/5330/1/Dominguez-talanta_2020.pdf 5cfd3708bf87c07c99fa6ca02b12dbb6 MD5 1 10259/5330 oai:riubu.ubu.es:10259/5330 2022-04-07 13:23:15.001 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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