GC-MS法比较水蒸气蒸馏法和超临界 CO2萃取法提取复方苦黄方挥发性成分

摘要

目的：比较水蒸气蒸馏(简称SD)法和超临界CO2萃取法(简称SFE-CO2萃取法)提取复方苦黄方中蛇床子、防风、苍术等三味中药的挥发性成分及相对含量。方法：采用气相色谱-质谱联用( GC-MS)法,对SD法提取的挥发油和SFE-CO2萃取法得到的萃取物进行分析,比较两种提取物中的化学成分,并用峰面积归一化法比较各成分的相对含量。结果： SD法提取的挥发油中分离鉴定出36种成分,SFE-CO2法得到的萃取物中分离鉴定出31种成分,其中22种成分相同,相对分子量主要集中在200~230之间。结论：SFE-CO2法对复方苦黄方中蛇床子、防风、苍术等三味中药有效成分的提取具有更高的选择性,是更适合本方剂的提取方法。%Objective:To compare the steam distillation( SD) and supercritical CO2 ( SFE-CO2 ) method in the extraction of vola-tile constituents from such 3 traditional Chinese drugs as cnidium monnieri, radix sileris and atractylodes lancea in compound Kuhuang prescription. Methods:Essential oil was extracted from the 3 traditional Chinese drugs by SD and SFE-CO2 method, respectively. The components were identified by GC-MS, and their relative contents were calculated with peak area normalization method. Results:To-tally 36 components were isolated and identified using SD extraction and 31 components were identified using SFE-CO2 extraction, a-mong them, 22 components were the same and their relative molecular weight mainly concentrated within 200-230. Conclusion: SFE-CO2 method can extract effective components from the 3 traditional Chinese drugs in compound Kuhuang prescription with higher selec-tivity, which is the more suitable extraction method for essential oil from the prescription.