The Present Status of Dense (Supercritical) Gas Extraction and Dense Gas Chromatography: Impetus for DGC/MS Development

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Abstract
Dense (supercritical) gas chromatography and the related rapidly growing field of dense gas extraction are reviewed and an extensive compilation detailing the dense gas systems (solvent gases, solutes, temperatures, pressures) that have been studied is presented. Furthermore, dense gas chromatography is compared to both gas and high performance liquid chromatographies with emphasis on mass spectrometric detection in all three. “It is concluded that a dense gas chromatograph/mass spectrometer, a new instrument, is both a complement to existing techniques and a timely development for use with dense (supercritical) gas systems.”