Chromatographia

, 50:21 | Cite as

Influence of chemical modification of polymeric resin on retention of polar compounds in solid-phase extraction

  • N. Masqué
  • M. Galiá
  • R. M. Marcé
  • F. Borrull
Originals

Summary

Three polymeric adsorbents, two of which had been chemically modified with different hydrophilic functional moieties and the third, which was the corresponding unmodified polystyrene-divinylbenzene (PSDVB) resin, were compared for solid-phase extraction (SPE) of several polar pesticides and phenolic compounds from water samples. The SPE system was online coupled to a liquid chromatograph with UV detector.

Chemical modification of the PS-DVB resin with either 2-carboxy-3/4-nitrobenzoyl or 2,4-dicarboxybenzoyl, improved the efficiency of the SPE process by increasing polar interactions with the analytes. The adsorbent with the nitro group gave higher recoveries, mainly for the most polar analytes. This adsorbent enabled 100 mL river water to be preconcentrated to determine the target analytes in this matrix.

Key words

Column liquid chromatography Solid-phase extraction Chemically-modified polymeric resins Polar pollutants Water analysis 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1999

Authors and Affiliations

  • N. Masqué
    • 1
  • M. Galiá
    • 1
  • R. M. Marcé
    • 1
  • F. Borrull
    • 1
  1. 1.Departament de Química Analitica i Química OrgànicaUniversitat Rovira i VirgiliTarragonaSpain

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