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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6118

    Título
    UV/Vis absorption spectroelectrochemistry of folic acid
    Autor
    Olmo Alonso, FabiolaAutoridad UBU
    Rodríguez Rubio, Andrea
    Colina Santamaría, ÁlvaroAutoridad UBU Orcid
    Heras Vidaurre, AránzazuAutoridad UBU Orcid
    Publicado en
    Journal of Solid State Electrochemistry. 2021
    Editorial
    Springer
    Fecha de publicación
    2021-08
    ISSN
    1433-0768
    DOI
    10.1007/s10008-021-05026-5
    Resumo
    UV/Vis absorption spectroelectrochemistry is a very promising analytical technique due to the complementary information that is simultaneously obtained from electrochemistry and spectroscopy. In this work, this technique is used in a parallel configuration to study the oxidation of folic acid in alkaline medium. Herein, UV/Vis absorption spectroelectrochemistry has been used to detect both the oxidation products and the folic acid consumed at the electrode/solution interface, allowing us to develop an analytical protocol to quantify vitamin B9 in pharmaceutical tablets. Linear ranges of three orders of magnitude have been achieved in basic medium (pH = 12.9), obtaining high repeatability and low detection limits. The spectroelectrochemical determination of folic acid in pharmaceutical tablets at alkaline pH values is particularly interesting because of the changes that occur in the optical signal during the electrochemical oxidation of FA, providing results with very good figures of merit and demonstrating the utility and versatility of this hyphenated technique, UV/Vis absorption spectroelectrochemistry.
    Palabras clave
    Vitamin B9
    Pharmaceutical drug
    Electrochemistry
    UV/Vis absorption spectroscopy
    Materia
    Química analítica
    Chemistry, Analytic
    URI
    http://hdl.handle.net/10259/6118
    Versión del editor
    https://doi.org/10.1007/s10008-021-05026-5
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