Ledum palustre

1. Objective: To explore the extraction and separation methods of the volatile oil of Ledum palustre, and provide scientific basis for further development and use.
   目的：探索狭叶杜香挥发油的提取分离方法，为其进一步开发利用提供科学依据。
2. The study of extraction methods of the volatile oil of Ledum palustre
   狭叶杜香挥发油提取方法的研究
3. Methods: We compared the yield and component change of the volatile oil of Ledum palustre by supercritical-CO_2 fluid extraction ( SFE) and by steam distillation ( SD) respectively, and the volatile oil has been analyzed qualitatively and quantitatively by GCMS.
   方法：研究了超临界流体提取法（SFE）及水蒸气蒸馏法（SD）所得杜香挥发油的收率及组分变化，并采用GC-MS联用技术进行分析。

noun

1. bog shrub of northern and central Europe and eastern Siberia to Korea and Japan

   Synonym:    wild rosemarymarsh tea