Application of HPLC capacity coefficients to characterize the sorption of polycyclic aromatic compounds to humic acid
| Autor: | Uuve Kirso, Katrin Siigur, Torben Nielsen, Christian Helweg |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
chemistry.chemical_classification
Chromatography endocrine system diseases Chemistry Inorganic chemistry Diol food and beverages Substrate (chemistry) Sorption complex mixtures High-performance liquid chromatography humanities Capacity factor Analytical Chemistry chemistry.chemical_compound Adsorption health services administration Humic acid Polar |
| Zdroj: | Talanta. 44:1873-1881 |
| ISSN: | 0039-9140 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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