Natural bitumens versus oil pollution in the Vlasina lake peat |
| |
Authors: | D ?urka P Pfendt B Jovan?i?evi? O Cvetkovi? H Wehner |
| |
Institution: | (1) Faculty of Chemistry, University of Belgrade POB 158, Chemistry Center, IChTM, Njego eva 12, Belgrade, Serbia, Montenegro;(2) Chemistry Center, IChTM, Njego eva 12, Belgrade, Serbia, Montenegro;(3) Federal Institute for Geosciences and Natural Resources, POB 54, Hannover, Germany |
| |
Abstract: | Free and associated bitumens were isolated by sequential extraction from Vlasina lake peat (SE Serbia) and were investigated in order to differentiate between oil pollution and natural bitumens. Four peat samples were collected at different depths, on a peat island. Gas chromatographic (GC) and gas chromatography/mass spectrometry (GC/MS) analysis revealed the presence of three markedly different bitumen fractions. Here we show that the free bitumens are representing the native peat bitumens. The two associated bitumens are mainly the products of bacterial rework of organic substance, which were then trapped by two differing mechanisms. The bitumens characteristics and association features exclude a contribution of oil pollution.Selected article from the Regional Symposium on Chemistry and Environment Krusevac, Serbia, June 2003, organised by Dr. Branimir Jovancicevic. |
| |
Keywords: | Peat Free and associated bitumens n-alkanes Biogenic and anthropogenic bitumens |
本文献已被 SpringerLink 等数据库收录! |
|