Monodisperse, hypercrosslinked polymer microspheres as tailor-made sorbents for highly efficient solid-phase extractions of polar pollutants from water samples

N. Fontanals, R.M. Marce, P.A.G. Cormack, D.C. Sherrington, F. Borrull

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

In this detailed analytical study, we have evaluated in-house synthesised polymeric solid-phase extraction (SPE) sorbents in the form of monodisperse, hypercrosslinked polymer microspheres with diameters in the low micrometre range (similar to 4 mu m). More specifically, their performance in the on-line SPE of a group of polar pollutants has been investigated thoroughly. The novel hypercrosslinked materials were compared with satisfactory results to commercial SPE sorbents with similar chemical and morphological properties, albeit that the commercial materials had higher particle sizes and broader particle size distributions. The on-line SPE method developed using these novel particles as packing material was applied successfully to ultrapure, mineral, tap and Ebre river water samples, with near total recoveries of all the analytes studied when 500 ml samples were percolated through the sorbents. Method validation with river water samples demonstrated good linearity, low detection limits as well as satisfactory precision in terms of repeatability and reproducibility, with values of relative standard deviation (%RSD) lower than 6.7 and 8.7%, respectively.
Original languageEnglish
Pages (from-to)118-124
Number of pages6
JournalJournal of Chromatography A
Volume1191
Issue number1-2
DOIs
Publication statusPublished - 16 May 2008

Keywords

  • micrometre-sized spherical particles
  • hypercrosslinked sorbent
  • solid-phase extraction
  • polar pollutants
  • aqueous samples
  • performance liquid-chromatography
  • precipitation polymerization
  • emerging contaminants
  • phenolic-compounds
  • mass-spectrometry
  • polystyrene
  • limitations

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