目的：研究紫玉盘挥发油的化学成分。方法：采用水蒸汽蒸馏法提取紫玉盘挥发油,用气相色谱-质谱联用法分离分析其成分及相对含量。结果与结论：共检出80个化合物,鉴定其中53个化合物,占挥发油总量的94．3%。紫玉盘挥发油的主要成分是吉马烯B、1,5,5-三甲基-6-亚甲基-环已烯、匙叶桉油烯醇、石竹烯、（-）蓝桉醇。

This paper deals with a process to analyze the chemical constituents of volatile oils in Uvaria microcarpa.In the study,volatile oils of U.microcarpa were extracted through steam distillation,and the constituents were then separated and identified using GC-MS.Authors have isolated 80 compounds,and identified 53 of them,or 94.3% of the total volatile oil elements collected.It is concluded that the volatile oils in U microcarpa are mainly made up of Germacrene B,1,5,5-Trimethyl-6-methylene-cyclohexene,Spathulenol,Caryophyllene,and （-） Globulol.

南宁市科学研究与技术开发项目(No20040172C)：紫玉盘化学成分分析及其临床应用的研究