Silicas chemically bonded with multidentate phenyl groups as stationary phases in reversed-phase liquid chromatography used for non-planarity recognition of polycyclic aromatic hydrocarbons

Multidentate phenyl-bonded phases have been evaluated as stationary phases which can recognize molecular non-polarity of polycyclic aromatic hydrocarbons. The results clearly indicate that these multidentate give a higher non-polarity recognition capability than that with typical octadecylsilicas such as polymeric and monomeric phases. The reason for this mechanism can be interpreted by the molecular-molecular interaction between a solute and a stationary phase and this kind of approach will open the possibility of designing new stationary phases which offer more selective of specific separations.