Elution behaviour of peropyrene-type polycyclic aromatic hydrocarbons in liquid chromatography.

The elution behaviour of peropyrene-type polycyclic aromatic hydrocarbons (PAHs) on variously bonded stationary phases in non-aqueous reversed-phase liquid chromatography has been investigated. The results clearly indicate that the retention behaviour is effected by the degree of planarity of the PAHs and by the properties of the stationary phases used. Solute planarity might also be influenced by solvation. Therefore, these factors combine to determine the retention of large PAHs.