气相色谱-质谱法测定香椿皮中脂溶性成分

GC-MS Determination of Fat-Soluble Components in Bark of Toona Sinensis

香椿皮样品经乙醇提取后用硅胶柱净化,所得洗脱液中脂溶性成分用气相色谱-质谱法分离和鉴定,用归一化法测定其相对含量。共鉴定出41种化学成分,其含量占总脂溶性成分峰面积的91.99%。主要脂溶性成分及其含量为萜烯类(36.58%)、烷烃类(31.70%)和脂肪酸类(21.95%)。

Sample of bark of Toona sinensis was extracted with ethanol and purified by passing through silica gel column. The fat soluble components in the eluant were separated and identified by GCMS, and their relative contents （in %） were found by the method of normalization. Totally 41 compounds were identified and determined, amounting to 91.99% of the total peak areas of the fat-soluble components, The main compounds found with their relative contents were as follows： terpenoids （36. 58%）, alkanes （31.70%） and fatty acid （21.95%）.