Summary
A chromatographic and thermodynamic study of the compound [4-(allyloxy)benzoyl]-4-methoxyphenyl (ABMP) as a model of a chemically bonded liquid crystal stationary phase for HPLC was undertaken. A number of polycyclic aromatic hydrocarbons (PAHs) and two small solutes, carvone and pulegone, were studied under varying solvent and temperature conditions. Plots of log k′ vs. % organic in the mobile phase were not completely linear in all cases. The van't Hoff plots revealed at least one phase transition. The enthalpies of solute transfer from the mobile phase to the ABMP phase were determined for several PAHs. All tests indicate that ABMP possess liquid crystal properties when bonded to particulate silica.
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Pesek, J.J., Lu, Y., Siouffi, A.M. et al. Chromatographic characterization of a bonded liquid crystal stationary phase for HPLC. Chromatographia 31, 147–151 (1991). https://doi.org/10.1007/BF02274563
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DOI: https://doi.org/10.1007/BF02274563