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 language | English |
|---|---|
| Journal | Talanta |
| Volume | 44 |
| Issue number | 10 |
| Pages (from-to) | 1873-1881 |
| ISSN | 0039-9140 |
| DOIs | |
| Publication status | Published - 1997 |