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Polyacrylate liquid crystalline stationary phases in supercritical fluid chromatography with carbon dioxide mobile phase
Authors:S. Rokushika  K. P. Naikwadi  A. L. Jadhav  H. Hatano
Affiliation:(1) Department of Chemistry, Faculty of Science, Kyoto University, Sakyo-ku, 606 Kyoto, Japan;(2) Present address: Department of Chemistry, University of Waterloo, N2L 3G1 Waterloo, Ontario, Canada
Abstract:Summary New polyacrylate liquid crystalline compounds were coated onto glass or fused-silica capillary columns as stationary phases and applied to supercritical fluid chromatography. These stationary phases, were very stable: no bleeding was observed at 200°C and up to 200kg/cm2 pressures of carbon dioxide mobile phase. The wide working range of the capillary column was extended below the g-n transition temperature. Isomeric compounds such as agr- and beta-methoxynaphthalene, anthracene and phenanthrene and several phenolic compounds were separated.
Keywords:Supercritical fluid chromatography  Polyacrylate liquid crystalline phases  Carbon dioxide mobile phase
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