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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 - and -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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