Overview of the novel sorbents available in solid-phase extraction to improve the capacity and selectivity of analytical determinations Authors Núria Fontanals Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Tarragona Rosa Maria Marcé Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Tarragona Francesc Borrull Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Tarragona Abstract This article provides an overview of the most recent developments in polymer materials that improve the solid-phase extraction (SPE) of analytes from liquid samples. The main focus is on new polymeric sorbents, both commercially available and “in-house” synthesized, whose enhanced properties allow suitable extraction. Several types of polymeric sorbents are described herein. Hypercrosslinked sorbents improve the capacity of the extraction process due to their large specific surface areas and balanced hydrophilicities. Molecularly imprinted polymers (MIPs) are synthesized with a specific cavity for the analyte of interest, improving extraction selectivity. Another type are mixed-mode sorbents that are high-capacity sorbents that contain an ion-exchange moiety that finetunes the selectivity of the extraction process. Finally, the results obtained when these sorbents are applied as SPE material to extract analytes in different liquid matrices are presented and comparatively discussed in the context of the most relevant analytical fields. Author Biography Núria Fontanals, Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Tarragona Downloads PDF Issue Vol. 6 No. 2 (2010): International Year of Chemistry: Special Issue / Salvador Alegret, Guest Editor Section Research reviews License This work is subject, unless the contrary is indicated in the text, the photographs or in other illustrations, to an Attribution —Non-Commercial— No Derivative Works 3.0 Creative Commons License, the full text of which can be consulted at http://creativecommons.org/licenses/by-nc-nd/3.0/. You are free to share, copy, distribute and transmit the work provided that the author is credited and reuse of the material is restricted to non-commercial purposes only and that no derivative works are created from the original material.
