Objective: to study the chemical constituents of the essential oil of Inula helenium L. were extracted by steam distillation (SD) and supercritical-CO2 fluid (SFE).

目的：研究土木香挥发油的化学成分，并比较水蒸气蒸馏提取(SD)与超临界CO2萃取(SFE)所得土木香挥发性成分的差异。

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Objective: To compare the chemical constituents of volatile oils from Folium Rhododendri Daurici between supercritical CO2 extraction (SCE-CO2) and steam distillation (SD).

目的：对超临界CO2萃取法和水蒸气蒸馏法提取的满山红挥发油化学成分进行比较研究。

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