Sulfur hexafluoride as a mobile phase for supercritical fluid chromatography |
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| Authors: | J W Hellgeth M G Fessehaie L T Taylor |
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| Institution: | (1) Department of Chemistry, Virginia Polytechnic Institute and State University, 24061-0699 Blacksburg, VA, USA |
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| Abstract: | Summary The capabilities of sulfur hexafluoride as a mobile phase for supercritical-fluid chromatography are investigated. An evaluation
of its overall utility on the basis of separations of standard aromatic hydrocarbon odel mixtures performed on a variety of
bonded-phase, packed columns with UV detection is presented. The dependence of separation performance upon operational parameters
is also examined. A comparative evaluation of the chroamtographic properties of supercitrical sulfur hexafluoride and those
of supercritical carbon dioxide is developed from these separations under corresponding supercritical state conditions. |
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| Keywords: | Supercritical fluid chromatography Packed columns Sulfur hexafluoride Carbon dioxide Aromatic hydrocarbons |
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