The technology of molecular-distillation(MD) for purifying staranise essential oil was researched, and chemical constitutions of essential oil and distilled substance were analyzed by GC-MS.
研究分子蒸馏技术纯化八角精油的工艺条件，利用GC-MS对精油及分离纯化的馏分进行化学组成分析。
2
Scanning Electron Microscopy (SEM) has been applied to the study on the superstructure of various microencapsulated staraniseoil.
本文用扫描电镜(sem)研究微胶囊化茴香油的超微结构。
3
The paper studies the best technological conditions of extracting staraniseoil with 95% ethanol.