Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry for Analysis of Volatile Components from Flos Ginseng

Headspace solid-phase microextraction-headspace solid-phase microextraction technique was employed to extract the volatile oil of Flos Ginseng. The components was isolated and identified by gas chromatography-mass spectrometry (GC/MS). The results from HS-SPME-GC-MS were compared with those obtained from steam distillation-GC-MS (SD-GC/MS)with a good agreement．The volatiles were collected using a polydimethylsiloxane-divinylbenzene (PDMS-DVB) fiber by HS-SPME．The best response was obtained, when the extraction temperature was 70 ℃．The equilibrium time and extraction time were all 30 min, and the desorption time was 4 min．Thirty-eight components accounting 79.3% are identified; the results show that the HS-SPME technique can replace the SD method in doing the extracting of the volatile oil of the Flos Ginseng.