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STUDY OF THE RETENTION OF BENZOTRIAZOLES, BENZOTHIAZOLES AND BENZENESULFONAMIDES IN MIXED-MODE SOLID-PHASE EXTRACTION IN ENVIRONMENTALSAMPLES

  • Dades identificatives

    Identificador: PC:3020
    Autors:
    Marcé, R.M:Salas, D.Borrull, F.Fontanals, N.
    Resum:
    In the present study, the capabilities of strong cation-exchange and strong anion-exchange sorbents for solid-phase extraction (SPE) have been evaluated for the selective retention of benzotriazoles (BTRs), benzothiazoles (BTs) and benzenesulfonamides (BSAs), which are a group of neutral analytes with interesting properties such as high polarity and the capability of delocalizing electron density. The retention of these analytes has been compared in both sorbents for the first time, using a SPE procedure specially designed to promote ionic retention of the analytes with the objective of including a washing step with an organic solvent to eliminate interferences retained by hydrophobic interactions. As a result, ionic interactions between the analytes and both sorbents were observed, which allowed the successful introduction of a washing step using methanol in the SPE procedure even when most of the analytes were in their neutral state under SPE conditions. Consequently, a method was developed and further validated for each sorbent using liquid chromatography coupled to high-resolution mass spectrometry (LC–HRMS). Apart from the development of an improved method, special attention was paid to the discussion of the interactions present between the sorbents and each group of analytes to explain how these analytes in their neutral state might develop ionic interactions with the sorbents. At the end, the use of these sorbents helped to simplify previous developed methods where hydrophobic/hydrophilic sorbents were used, obtaining enhanced results when evaluated in river water and effluent and influent wastewaters.
  • Altres:

    Autor segons l'article: Marcé, R.M:; Salas, D. ; Borrull, F. ; Fontanals, N.
    Departament: Química Analítica i Química Orgànica
    Autor/s de la URV: MARCÉ RECASENS, ROSA MARIA; Salas, D. ; BORRULL BALLARÍN, FRANCESC; Fontanals, N.
    Paraules clau: Benzotriazoles Benzothiazoles Benzenesulfonamides
    Resum: In the present study, the capabilities of strong cation-exchange and strong anion-exchange sorbents for solid-phase extraction (SPE) have been evaluated for the selective retention of benzotriazoles (BTRs), benzothiazoles (BTs) and benzenesulfonamides (BSAs), which are a group of neutral analytes with interesting properties such as high polarity and the capability of delocalizing electron density. The retention of these analytes has been compared in both sorbents for the first time, using a SPE procedure specially designed to promote ionic retention of the analytes with the objective of including a washing step with an organic solvent to eliminate interferences retained by hydrophobic interactions. As a result, ionic interactions between the analytes and both sorbents were observed, which allowed the successful introduction of a washing step using methanol in the SPE procedure even when most of the analytes were in their neutral state under SPE conditions. Consequently, a method was developed and further validated for each sorbent using liquid chromatography coupled to high-resolution mass spectrometry (LC–HRMS). Apart from the development of an improved method, special attention was paid to the discussion of the interactions present between the sorbents and each group of analytes to explain how these analytes in their neutral state might develop ionic interactions with the sorbents. At the end, the use of these sorbents helped to simplify previous developed methods where hydrophobic/hydrophilic sorbents were used, obtaining enhanced results when evaluated in river water and effluent and influent wastewaters.
    Grup de recerca: Grup de Cromatografia. Aplicacions Mediambientals
    Àrees temàtiques: Química Química Chemistry
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0021-9673
    Identificador de l'autor: 0000-0002-5667-2899; ; 0000-0003-2718-9336;
    Data d'alta del registre: 2018-03-01
    Pàgina final: 31
    Volum de revista: 1444
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0021967316303351?via%3Dihub
    Programa de finançament: plan; CTQ2011-24179 plan; Excelencia; CTQ2014-52617-P plan; PhD fellowship; BES-2012-057792
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1016/j.chroma.2016.03.053
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2016
    Pàgina inicial: 21
    Tipus de publicació: Article Artículo Article
  • Paraules clau:

    Compostos heterocíclics
    Extracció (Química)
    Benzotriazoles
    Benzothiazoles
    Benzenesulfonamides
    Química
    Química
    Chemistry
    0021-9673
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