Abstract
The instrumentation and applications of a simple microscale supercritical fluid extraction system are described. The system consisted of an high-performance liquid chromatography pump with a pump-head cooling jacket, an extraction vessel made from a short empty column, 35 mm × 4.6 mm I.D., and a capillary restrictor. Lemon peel oil was extracted with sub- and supercritical carbon dioxide at various pressures and temperatures and collected in a micro-vial. The extract was analyzed by gas chromatography-mass spectrometry and the results were compared to those for a cold-pressed lemon oil.
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