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超临界CO₂萃取天然除虫菊化学成分的GC-MS分析

GC-MS Analysis of the Chemical Constituents of Natural Pyrethrum Extracted by Supercritical CO₂

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【Author】 ZHENG Jian-zhen~1,LIU Wen-han~1,WU Xiao-qiong~1,LIN Zhen-xing~2(1.College of Chemical Engineering and Material Science,Zhejiang University of Technology,Hangzhou 310032,China;2.Ningbo Entry-Exit Inspection and Quarantine Bureau of the People′s Republic of China,Ningbo 315012,China)

【机构】浙江工业大学化学工程与材料学院；宁波出入境检验检疫局浙江杭州310032；浙江杭州310032；浙江宁波315012；

【摘要】采用GC-MS法对超临界CO2萃取天然除虫菊的化学成分进行了分析,用归一化法测定了各组分的相对百分含量。结果共分离出53个组分,鉴定了31个成分,已鉴定的化合物组分占总馏出组分的58.5%。结果表明超临界CO2萃取的天然除虫菊的主要成分为除虫菊酯类以及烷烃类、烯醇、烯酸、甾醇、脂肪酸,其中除虫菊酯的相对含量为50.70%。更多还原

【Abstract】 GC-MS was used to analyse pyrethrum extracted by supercritical CO₂.Area normalization was used to determine relative percentage content of the compounds.As a result,53 compounds were separated and 31 compounds were identified,the identified compounds accounted for more than 58.5 % of the total compounds,it is indicated that the pyrethrum contains alkane,olefinic alcohol,olefine acid,sterol,fatty acid and pyrethrins.The relative percentage content of pyrethrins is 50.70 %.更多还原