Abstract:

To establish headspaceGC method for the determination of residua of macroporous resin in the saponins extracted from the roots of Panax ginseng C A Meyer, the chromatographic separation was performed. The column temperature was programed, with an initial temperature of 60 ℃ (hold 22 min), at an increasing rate of 50 ℃/min to 200 ℃ (hold 6 min); the injector temperature was set at 220 ℃ and FID detector temperature was set at 260 ℃; solvent was 40% N,NDimethyl acetamide (DMF)； the carrier gas was nitrogen.  All the residua including nhexane, benzene, toluene, 1,4xylene, styrene and 1,4diethylbenzene gave good linearities and the recoveries.

Key words: saponins of the roots of Panax ginseng C A Meyer, macroporous resin； residua； headspaceGC