METHODS The volatile oil was extracted and separated from Elsholtzia rugulosa by supercritical CO2 fluid-molecular distillation, and the chemical components were determined by GC-MS analysis.

• 方法：通过超临界流体二氧化碳萃取-分子蒸馏法提取和分离香芝麻蒿挥发油，并运用GC-MS法分析鉴定其化学成分。