2026-04-30T07:03:31Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/48322021-11-10T09:38:18Zcom_10259_3844com_10259_5086com_10259_2604col_10259_3845

Perales Rondon, Juan Víctor 432 500 Hernández Muñoz, Sheila 275 500 Martin Yerga, Daniel . 754795ae-edc2-4727-a48d-297d9c63b805 500 Fanjul Bolado, Pablo . b87b7e68-6efe-46ee-bd2a-fed45843aa84 500 Heras, Aránzazu 273 500 Colina, Álvaro 122 500 2018-07-03T08:48:15Z 2018-08 2020-08 0013-4686 http://hdl.handle.net/10259/4832 10.1016/j.electacta.2018.06.079 In this work, an unexpected enhancement of the Raman signal for uric acid during the electrochemical oxidation of a silver electrode is presented. This behavior cannot be easily explained using classical models of Surface Enhanced Raman Scattering (SERS). Time resolved Raman spectroelectrochemistry is used to study this interesting process strongly dependent on the experimental conditions. The new phenomenon was observed in different molecules and was found to be reproducible and robust, allowing us to use this methodology for the determination of citric acid. The enhancement of the Raman signal only takes place when a potential is applied to the electrode and therefore, this new phenomenon can be denoted as Electrochemical Surface Oxidation Enhanced Raman Scattering (EC-SOERS). In this work, EC-SOERS is presented not only as an alternative to SERS for detection of molecules but also as a reproducible process that can be used for quantitative analysis. Ministerio de Economía y Competitividad (Grants CTQ2017-83935-R-AEI/FEDER-UE and CTQ2014-55583-R) and Junta de Castilla y León (Grant BU033-U16) application/pdf eng Elsevier Electrochimica Acta. 2018, V. 282, p. 377-383 https://doi.org/10.1016/j.electacta.2018.06.079 info:eu-repo/grantAgreement/MINECO/CTQ2017-83935-R-AEI/FEDER-UE info:eu-repo/grantAgreement/MINECO/CTQ2014-55583-R info:eu-repo/grantAgreement/JCyL/BU033-U16 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess SERS Silver roughening Raman spectroelectrochemistry PARAFAC Química analítica Chemistry, Analytic Electrochemical surface oxidation enhanced Raman scattering info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/4832/8/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 8 THUMBNAIL Perales-EA_2018.pdf.jpg Perales-EA_2018.pdf.jpg IM Thumbnail image/jpeg 4057 https://riubu.ubu.es/bitstream/10259/4832/7/Perales-EA_2018.pdf.jpg 9c3aa78f690a86021b1753fd1bf6f13c MD5 7 ORIGINAL Perales-EA_2018.pdf Perales-EA_2018.pdf application/pdf 3502467 https://riubu.ubu.es/bitstream/10259/4832/1/Perales-EA_2018.pdf d4e72eb5cab3edea4165d11cde19c174 MD5 1 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/4832/5/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 5 TEXT Perales-EA_2018.pdf.txt Perales-EA_2018.pdf.txt Extracted text text/plain 45123 https://riubu.ubu.es/bitstream/10259/4832/6/Perales-EA_2018.pdf.txt 4bd43b53820a2a46a23a2e595c96a116 MD5 6 10259/4832 oai:riubu.ubu.es:10259/4832 2021-11-10 10:38:18.009 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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