Top note compounds of Laozao were analyzed by using headspace sampler and GC-MS.
采用顶空自动进样、气相色谱-质谱联用的方法分析醪糟的头香成分。
Methods: The samples were injected into HP-INNOWAX capillary column by headspace sampler and analyzed with FID detector using standard addition method.
方法：采用顶空毛细管气相色谱法，以标准溶液加入法测定三七提取物中有机溶剂残留量。
METHODS the samples were injected into DM-624 capillary column by headspace sampler and analysed with FID detector using methanol as the internal standard.
方法用DM - 624毛细管气相色谱柱，顶空进样法，FID检测器，以甲醇为内标进行测定。
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