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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/5024

    Título
    Polymer films containing chemically anchored diazonium salts with long-term stability as colorimetric sensors
    Autor
    Bustamante, Saúl E. .
    Vallejos Calzada, SaúlUBU authority
    Pascual Portal, Blanca SolUBU authority
    Muñoz Santamaría, María AsunciónUBU authority
    Mendía Jalón, AránzazuUBU authority
    Rivas, Bernabé L. .
    García García, Félix ClementeUBU authority
    García Pérez, José MiguelUBU authority
    Publicado en
    Journal of Hazardous Materials. 2019, V. 365, p. 725-732
    Editorial
    Elsevier
    Fecha de publicación
    2019-03
    ISSN
    0304-3894
    DOI
    10.1016/j.jhazmat.2018.11.066
    Abstract
    We have prepared polymeric films as easy-to-handle sensory materials for the colorimetric detection and quantification of phenol derivatives (phenols) in water. Phenols in water resources result from their presence in pesticides and fungicides, among other goods, and are harmful ecotoxins. Colorless polymeric films with pendant diazonium groups attached to the acrylic polymer structure were designed and prepared for use as sensory matrices to detect phenol-derived species in water. Upon dipping the sensory films into aqueous media, the material swells, and if phenols are present, they react with the diazonium groups of the polymer to render a highly colored azo group, giving rise to the recognition phenomenon. The color development can be visually followed for a qualitative determination of phenols. Additionally, quantitative analysis can be performed by two different techniques: a) by using a UV–vis spectrophotometer (limit of detection of 0.12 ppm for 2-phenylphenol) and/or b) by using a smartphone with subsequent RGB analysis (limit of detection of 30 ppb for 2-phenylphenol)
    Palabras clave
    Polymeric sensors
    Film shaped sensors
    Colorimetric sensors
    Phenol sensors
    URI
    http://hdl.handle.net/10259/5024
    Versión del editor
    https://doi.org/10.1016/j.jhazmat.2018.11.066
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    • Artículos POLYMERS
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