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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6128

    Título
    Electrochemical generation of surface enhanced Raman scattering substrates for the determination of folic acid
    Autor
    Cheuquepan Valenzuela, WilliamUBU authority Orcid
    Hernández Muñoz, SheilaUBU authority Orcid
    Pérez Estébanez, MartínUBU authority Orcid
    Romay, L.
    Heras Vidaurre, AránzazuUBU authority Orcid
    Colina Santamaría, ÁlvaroUBU authority Orcid
    Publicado en
    Journal of Electroanalytical Chemistry. 2021, V. 896, 115288
    Editorial
    Elsevier
    Fecha de publicación
    2021-09
    ISSN
    1572-6657
    DOI
    10.1016/j.jelechem.2021.115288
    Abstract
    Electrochemistry is a very useful technique to generate surface enhanced Raman scattering (SERS) substrates. SERS depends on two mechanisms: the electromagnetic effect, related to the plasmonic properties of the nanostructures in the substrate, and the chemical mechanism, related to the interaction between the target molecule and the substrate. Thus, Raman enhancement for a molecule strongly depends on the nature of the nanostructures that form the substrate. In this work, time-resolved Raman spectroelectrochemistry is used to generate SERS substrates, obtaining the Raman signal during the generation of the substrate, which is very useful to obtain valuable information on the Raman performance of the substrate. Two metals, Au and Ag, have been used to determine folic acid in a drug. In this example, Au SERS substrates are highly influenced by interfering compounds present in the drug tables. On the contrary, Ag SERS substrates have been demonstrated to yield very good figures of merit in the determination of folic acid in this complex sample.
    Palabras clave
    Spectroelectrochemistry
    Surface enhanced Raman Scattering
    SERS
    RAMAN
    Materia
    Química analítica
    Chemistry, Analytic
    URI
    http://hdl.handle.net/10259/6128
    Versión del editor
    https://doi.org/10.1016/j.jelechem.2021.115288
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