Summary
The behaviour of perfluorocarbon modified silica gel has been investigated in HPLC for the group separation of alkyl-substituted aromatic hydrocarbons. Using dry alkanes as eluents, the influence of the substituted alkyl groups on the retention of mono- and polycyclic aromatics is very small. Therefore, aromatic hydrocarbons can be separated in order of their increasing π-electron energy characterized by a linear correlation between ink′ and the resonance energy. The method is useful for the group separation of crude oil distillates into groups according to aromatic ring types.
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Ecknig, W., Trung, B., Radeglia, R. et al. Group separation of alkyl-substituted aromatic hydrocarbons by high-performance liquid chromatography using perfluorocarbon modified silica gel. Chromatographia 16, 178–182 (1982). https://doi.org/10.1007/BF02258894
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DOI: https://doi.org/10.1007/BF02258894