白花檵木花挥发油成分的GC-MS分析

GC-MS Analysis of Essential Oil from the Flowers of Loropetalum Chinensis

目的:分析白花檵木花的挥发油化学成分,为其质量评价提供科学依据。方法:采用水蒸气蒸馏法提取白花檵木花的挥发油成分,用GC毛细管柱进行分离,质谱检测,归一化法测定其相对含量。结果:检出36个成分,鉴定出19个化合物,占挥发油总量的97.63%。结论:除了醋酸乙酯外,烷烃类是主要化学成分,十五烷相对含量达21.12%。

Objective： To analyze the constituents of the essential oil extracted from the flowers of Loropetalum chinensis （R. Br. ） Oliv. （Chinese Loropetalum flower） , and provide quality control foundations. Methods： The essential oil was extracted by hydrodistillation method and identified by GC-MS. The relative content was determined with normalization method. Results： Thirty-six compounds were detected and 19 compounds were identified which were 97.63% of the total essential oil. Conclusion： Except ethyl acetate detected, alkanes were the main constituents in the essential oil extracted from the flowers of L. chinensis. Among them, pentadecane was 21.12 % of the total essential oil.