The main constituents in essential oil from L. haplophylloides Hand-Mazz of Qinghai-Xizang platers were studied with capillary GC/MS and GC/FTIR.Totally 119 compounds were identified.

• 用毛细管气相色谱／质谱、毛细管气相色谱／付里叶红外联用技术对青海产香芸火绒草精油化学成分进行分离。