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Analytical and Bioanalytical Chemistry

, Volume 395, Issue 4, pp 1107–1115 | Cite as

On-line ionic imprinted polymer selective solid-phase extraction of nickel and lead from seawater and their determination by inductively coupled plasma-optical emission spectrometry

  • Natalia García-Otero
  • Carmen Teijeiro-Valiño
  • Jacobo Otero-Romaní
  • Elena Peña-Vázquez
  • Antonio Moreda-Piñeiro
  • Pilar Bermejo-BarreraEmail author
Original Paper

Abstract

Nickel(II) and lead(II) ionic imprinted 8-hydroxyquinoline polymers were synthesized by a precipitation polymerization technique and were used as selective solid phase extraction supports for the determination of nickel and lead in seawater by flow injection solid phase extraction on-line inductively coupled plasma-optical emission spectrometry. An optimum loading flow rate of 2.25 mL min−1 for 2 min and an elution flow rate of 2.25 mL min−1 for 1 min gave an enrichment factor of 15 for nickel. However, a low dynamic capacity and/or rate for adsorption and desorption was found for lead ionic imprinted polymer and a flow rate of 3.00 mL min−1 for 4-min loading and a flow rate of 2.25 mL min−1 for 1-min elution gave a enrichment factor of 5. The limit of detection was 0.33 µg L−1 for nickel and 1.88 µg L−1 for lead, with a precision (n = 11) of 8% (2.37 µg Ni L−1) for nickel and 11% (8.38 µg Pb L−1) for lead. Accuracy was also assessed by analyzing SLEW-3 (estuarine water) and TM-24 (lake water) certified reference materials, and the values determined were in good agreement with the certified concentrations.

Keywords

On-line solid-phase extraction Ionic imprinted polymer Nickel Lead Seawater Inductively coupled plasma-optical emission spectrometry 

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Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Natalia García-Otero
    • 1
  • Carmen Teijeiro-Valiño
    • 1
  • Jacobo Otero-Romaní
    • 1
  • Elena Peña-Vázquez
    • 1
  • Antonio Moreda-Piñeiro
    • 1
  • Pilar Bermejo-Barrera
    • 1
    Email author
  1. 1.Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of ChemistryUniversity of Santiago de CompostelaSantiago de CompostelaSpain

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