Retention of Polyphenyls and Substituted Polycyclic Aromatic Hydrocarbons in a System Hydroxylated Silica - N-Hexane

Yu.S. Nikitin, S.N. Lanin, A. Al-Ahmed

Chromatographia, v. 44 (1997)

ABSTRACT. Regularity of retention of unsubstituted and methyl-substituted polyphenyls and condensed polycyclic aromatic hydrocarbons in normal-phase HPLC mode with nonpolar mobile phase (n-hexane) on hydroxylated silica has been considered. It was shown, that chromatographic retention of aromatic hydrocarbons depends not only on number of aromatic rings and methyl group in a molecule, but also on a nature of bond between aromatic rings in molecules polyphenyls and condensed polycyclic aromatic hydrocarbons. Relationship "retention-structure" was proposed for the description of retention regularity of the studied aromatic hydrocarbons.

Laboratory of Adsorption and Chromatography