Pattern analysis of volatile components for domestic and imported Angelica gigas Nakai using GC based on SAW sensor

摘要

Volatile components were detected from domestic and imported Angelica gigas Nakai without any pretreatment using GC based on Surface Acoustic Wave (SAW) sensor. This system produced a frequency proportional to the amount of column effluent depositedon the SAW sensor. Discrimination between domestic and imported Angelica gigas Nakai was achieved through recognition of visual pattern using VaporPrint~(TM) derived from frequency and chromatogram of GC-SAW sensor.