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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6121

    Título
    Spectroelectrochemical Determination of Isoprenaline in a Pharmaceutical Sample
    Autor
    Olmo Alonso, FabiolaUBU authority
    Garoz Ruiz, JesúsUBU authority Orcid
    Carazo, Julia
    Colina Santamaría, ÁlvaroUBU authority Orcid
    Heras Vidaurre, AránzazuUBU authority Orcid
    Publicado en
    Sensors. 2020, V. 20, n. 18, 5179
    Editorial
    MDPI
    Fecha de publicación
    2020-09
    ISSN
    1424-8220
    DOI
    10.3390/s20185179
    Abstract
    UV/Vis absorption spectroelectrochemistry (SEC) is a multi-response technique that has been commonly used for the characterization of materials and the study of reaction mechanisms. However, it has been scarcely used for quantitative purposes. SEC allows us to obtain two analytical signals simultaneously, yielding a dual sensor in just one experiment. In the last years, our group has developed new devices useful for analysis. In this work, a SEC device in parallel configuration, based on optical fibers fixed on screen-printed electrodes, was used to determine isoprenaline in a commercial drug, using both, the electrochemical and the spectroscopic signals. In this commercial drug, isoprenaline is accompanied in solution by other compounds. Among them is sodium metabisulfite, an antioxidant that strongly interferes in the isoprenaline determination. A simple pretreatment of the drug sample by bubbling wet-air allows us to avoid the interference of metabisulfite. Here, we demonstrate again the capabilities of UV/Vis absorption SEC as double sensor for analysis and we propose a simple pretreatment to remove interfering compounds.
    Palabras clave
    Spectroelectrochemistry
    Electrochemistry
    UV/Vis absorption
    Drug analysis
    Isoproterenol
    Metabisulfite
    Materia
    Química analítica
    Chemistry, Analytic
    URI
    http://hdl.handle.net/10259/6121
    Versión del editor
    https://doi.org/10.3390/s20185179
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    Atribución 4.0 Internacional
    Documento(s) sujeto(s) a una licencia Creative Commons Atribución 4.0 Internacional
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    Olmo-sensors_2020.pdf
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    1.279Mb
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