The Methods for Fractionation, Analytical Separation and Identification of Polynuclear Aromatic Hydrocarbons in Complex Mixtures

Chromatographic and spectral analysis of polynuclear aromatic hydrocarbons - quantitative distribution in air of Ontario cities

“…Consequently, it is important to develop effective, quantitative separation techniques for the analysis of PAH compounds in air particulate samples, including the isolation of the individual components of isomeric groups that differ greatly in toxicity. Reported separation schemes employing thin-layer chromatography (5)(6)(7), adsorption chromatography and charge-transfer complexation (8), paper chromatography (9), and mass fragmentometry (10) have met with only limited or little success in the separation of isomers.…”

Separation and characterization of very large neutral polycyclic molecules in fossil fuels by microcolumn liquid chromatography and mass spectrometry

“…It is believed that smaller molecules are better analyzed by capillary GC (3,4,6), while the fate of possible larger molecules treated by our fractionation scheme is presently unknown.…”

“…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.…”

Monitoring of polynuclear aromatic hydrocarbons in water. II. Extraction and recovery of six representative compounds with polyurethane foams

“…A group of compounds that has received particular attention is the polynuclear aromatic hydrocarbons (PAH). The levels of PAH in the water environment have been extensively studied by many European researchers (1)(2)(3), but data regarding their levels in U.S. drinking waters and their respective raw waters are virtually nonexistent.…”

“…The choice of procedure for the separation of PAH from the interfering classes of compounds depends largely on the type of sample to be analyzed. No satisfactory method exists for the analysis of PAH in drinking waters and their respective raw waters, although abundant references are available for their analysis in other types of samples (2)(3)(4)(5)(6).…”