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
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
Repositori URV