Application of HPLC capacity coefficients to characterize the sorption of polycyclic aromatic compounds to humic acid

T. Nielsen, C. Helweg, K. Siigur, U. Kirso

    Research output: Contribution to journalJournal article

    Abstract

    The sorption coefficients to humic acid of 46 PAC having a wide range in polarity were compared with the capacity coefficients of the PAC to a non-polar HPLC column material (ODS) and a polar one (Diol). It is shown that polar interactions contribute to the sorption of polar PAC in addition to the non-polar interactions. The results also suggest that humic acid may contain different hydrophilic adsorption sites. The non-polar column material was only the best model substrate, if the test materials were limited to the hydrophobic unsubstituted PAC, PAH + O,S-PAC. (C) 1997 Elsevier Science B.V.
    Original languageEnglish
    JournalTalanta
    Volume44
    Issue number10
    Pages (from-to)1873-1881
    ISSN0039-9140
    DOIs
    Publication statusPublished - 1997

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