Comparison of Eluents in Supercritical Fluid Chromatography

Abstract

Abstract The chromatographic behavior of a number of low boiling eluents has been compared in supercritical fluid chromatography (SFC) with packed columns. Unmodified silica gel has been used as the stationary phase and a test mixture of polycyclic aromatic hydrocarbons (PAH's) as the substrate. Carbon dioxide, nitrous oxide, trifluoromethane, chlorotrifluoromethane, n-pentane, n-butane, i-butane, propane, ethane, diethylether, and dimethylether have been investigated as mobile phases.