【摘要】 目的分析栾华的挥发油成分。方法水蒸气蒸馏法提取栾华挥发油,并用GC-MS对其成分进行分析,并用面积归一化法测定各组分的相对含量。其中浸泡时间为20 h,加热8 h至挥发油量不再增加为止;GS-MS条件:DB-5MS毛细管色谱柱(0.2 mm×30 m,0.25μm);载气为高纯度氦气,流速为1 mL.min-1;质谱分析条件:EI电离源70 eV;离子源温度200℃。结果鉴定出了35个组分占总出峰面积的98.8%,并确定了其中主要成分的相对含量。结论栾华挥发油的主要成分为:3-甲基-4-羰基戊酸(49.71%)、n-十六酸(16.16%)、肉豆蔻酸(2.62%)、亚麻酸(2.38%)、9,12-十八碳二烯酸(2.36%)、2-十五酮(2.32%)、正三十六烷(2.17%)、苯乙醛(2.05%)。更多还原

【Abstract】 OBJECTIVE To analyze the compositions of essential oil from flower of paniculate goldraintree.METHODS To isolate by steam distillation and analyze by GC-MS.Relative content of each component was determined by area normalization.Immersion them 20 hours and heating them to 8 hours until the essential oil did not increase.GS-MS conditions: DB-5MS capillary column(0.2 mm×30 m,0.25 μm),carrier gas was high purity helium,flow rate was 1 mL·min-1.MS conditions: EI ionization 70 eV,ion source temperature was 200 ℃.RESULTS Thirty-five compounds,representing 98.8% of total oil,were indentified and their relative amount was determined.CONCLUSION The oil is rich in 3-methyl-4-oxopentanoic acid(49.71%),n-hexadecanoic acid(16.16%),myristic acid(2.62%),linolenic acid(2.38%),(Z,Z)-9,12-octadecadienoic acid(2.36%),2-pentadecanone(2.32%),hexatriacontane(2.17%),benzeneacetaldehyde(2.05%).更多还原