Retention prediction of large and condensed polycyclic aromatic hydrocarbons in reversed‐phase microcolumn liquid chromatography with diphenylsilica stationary phase

The retention behavior of condensed large polycyclic aromatic hydrocarbons has been investigated with diphenylsilica stationary phases in reversed‐phase microcolumn liquid chromatography. The results were correlated with two parameters which indicate size and shape of the molecules. Since the resulting equation can be used for retention prediction of large polycyclic aromatic hydrocarbons, computer‐assisted “standardless” identification is accomplished for “unknown” compounds contained in the standard.