目的:对藏药髯花杜鹃花挥发油的化学成分进行研究。方法:采用水蒸气蒸馏法提取髯花杜鹃花的挥发油,用毛细管气相色谱-质谱联用技术对化学成分进行分析,以面积归一法测定各个成分的相对百分含量。结果:共分离出50个峰,鉴定了其中47个化学成分,占挥发油总量的97.44%。结论:髯花杜鹃花挥发油中的主要成分为N-乙酰-1,2,3,4-四氢异喹啉(29.23%)、2-乙氧丙烷(12.47%)、3-甲基-6-叔丁基苯酚(10.83%)、3-甲基-5-苯基异噻唑(6.38%)、二苯胺(4.20%)、N-乙基-1,2,3,4-四氢萘胺(3.62%)、二十五烷(3.12%)、二十三烷(3.06%)等。
Objective: To study the chemical constituents of the volatile oils from the flowers of Rhododendron anthopogon D.Don.Methods: The volatile oils from the flowers of Rhododendron anthopogon D.Don were extracted by water steam distillation and its chemical constituents were separated and identified by GC-MS.The content of each constituent was determined by area normalizetion method.Results: Fifty peaks were separated and forty seven components were identified,which constituted about 97.44% of the total essential oils.Conclusions: The main compounds are N-acetyl-1,2,3,4-tetrahydro-isoquinoline(29.23%),2-Ethoxypropane(12.47%),3-Methyl-6-tert-butylphenol(10.83%),3-Methyl-5-phenyl-isothiazole(6.38%),Diphenylamine(4.20%),N-ethyl-1,2,3,4-tetrahydro-naphthalenamine(3.62%),Pentacosane(3.12%)and Tricosane(3.06%).