Author, as appears in the article.: Carles Nadal, Joan; Catala-Icardo, Monica; Borrull, Francesc; Manuel Herrero-Martinez, Jose; Maria Marce, Rosa; Fontanals, Nuria
Department: Química Analítica i Química Orgànica
URV's Author/s: Borrull Ballarín, Francesc / Fontanals Torroja, Núria / Marcé Recasens, Rosa Maria / Nadal Lozano, Joan Carles
Keywords: Weak anion-exchange materials Weak anion-exchange material Stir-bar-sorptive extraction Stir bar sorptive extraction Solid-phase extraction Selectivity Reusability Mass spectrometry Magnets Liquid chromatography-mass spectrometry Liquid chromatography - mass spectrometries Liquid chromatography Ions Ion exchange resins Extraction Ethylene diamine Environmental waters Environmental water Anion exchange material Anion exchange Acidic contaminants Acidic compounds transformation products surface modification stir bar sorptive extraction selectivity polar plasma pharmaceuticals monolithic polymer microextraction techniques liquid-chromatography liquid chromatography-mass spectrometry environmental waters coatings acidic contaminants
Abstract: In this study, the first example of a polytetrafluoroethylene (PTFE)-based magnet coated with weak anion exchange (WAX) monolith as novel support for stir bar sorptive extraction (SBSE) is presented. Firstly, the PTFE magnets were properly modified and vinylized in order to immobilize polymer monoliths onto its surface. Then, a glycidyl methacrylate monolith was prepared and modified with ethylenediamine (EDA) to create weak anion exchanger via ring opening reaction of epoxy groups. The prepared covalently immobilized EDA-modified monoliths onto PTFE magnet exhibited good stability and reusability. Application of resulting material as stir bar for SBSE was investigated for a series of acidic compounds that includes acesulfame, saccharin, diclofenac or ibuprofen, among others as target compounds. Firstly, the SBSE conditions were optimized to promote the WAX interactions with the target compounds achieving recoveries from 37 to 75% and enable the selective extraction of these compounds as it provided values of% matrix effect from 17 to -13% when they were determined by SBSE followed by liquid chromatography - tandem mass spectrometry. The analytical methodology, was then validated and applied for the determination of the target solutes in environmental water samples, which were found at concentration up to 2500 ng L?1 in river waters. © 2021 Elsevier B.V.
Thematic Areas: Zootecnia / recursos pesqueiros Química Organic chemistry Nutrição Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Materiais Interdisciplinar Geociências General medicine Farmacia Engenharias ii Engenharias i Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, analytical Biotecnología Biodiversidade Biochemistry Biochemical research methods Analytical chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: joancarles.nadal@estudiants.urv.cat joancarles.nadal@estudiants.urv.cat nuria.fontanals@urv.cat nuria.fontanals@urv.cat rosamaria.marce@urv.cat francesc.borrull@urv.cat
Author identifier: 0000-0002-7534-1964 0000-0002-7534-1964 0000-0002-5667-2899 0000-0003-2718-9336
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/acceptedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Journal Of Chromatography a. 1663 462748-
APA: Carles Nadal, Joan; Catala-Icardo, Monica; Borrull, Francesc; Manuel Herrero-Martinez, Jose; Maria Marce, Rosa; Fontanals, Nuria (2022). Weak anion-exchange mixed-mode materials to selectively extract acidic compounds by stir bar sorptive extraction from environmental waters. Journal Of Chromatography a, 1663(), 462748-. DOI: 10.1016/j.chroma.2021.462748
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV