Selective Pressurized Liquid Extraction of Polychlorinated Biphenyls in Sediment

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  • WESTBOM Rikard
    Department of Analytical Chemistry, Lund University
  • SPORRING Sune
    Department of Pharmaceutics and Analytical Chemistry, University of Copenhagen
  • CEDERBERG Louise
    Department of Analytical Chemistry, Lund University
  • LINDEROTH Lars-Ola
    Department of Analytical Chemistry, Lund University
  • BJÖRKLUND Erland
    Department of Analytical Chemistry, Lund University Department of Pharmaceutics and Analytical Chemistry, University of Copenhagen

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A selective pressurized liquid extraction procedure (SPLE) was developed for a fast determination of polychlorinated biphenyls in sediment. The final method was performed at 100°C with heptane/dichloromethane (90:10, v/v) as extraction solvent for 2 × 5 min. Sulfuric acid impregnated silica was placed downstream of the sample in the extraction cell to remove interfering components. This simultaneous extraction/clean-up was performed in 20 min, with an average congener recovery of 92% compared to a classical 24 h Soxhlet methodology and 2 h of external manual clean-up.

収録刊行物

  • Analytical Sciences

    Analytical Sciences 24 (4), 531-533, 2008

    社団法人 日本分析化学会

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