“…Extensive use of capillary gas chromatography (GC) and its ancillary techniques during the last decade has helped significantly in providing valuable information on the polyaromatic molecules with different functionalities (neutral, nitrogen-containing, sulfur-containing, amino-substituted, etc., polycyclic compounds). Furthermore, due to typical sample complexity, effective fractionation methods (3)(4)(5)(6) are still needed prior to high-resolution chromatography. Although some separations of relatively large polyaromatic molecules at very high temperatures by capillary GC have been reported (7,8), even thin-film, thermally stable capillary columns become severely limited by a lack of sample volatility.…”