Overview of the novel sorbents available in solid-phase extraction to improve the capacity and selectivity of analytical determinations

Autores/as

  • 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

Resumen

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.

Biografía del autor/a

Núria Fontanals, Department of Analytical Chemistry and Organic Chemistry, Rovira i Virgili University, Tarragona



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