铁箍散是贵州民间治疗风湿麻木、跌打损伤的常用药材,主要有效成分为挥发油。采用水蒸气蒸馏法提取铁箍散根茎部位的挥发油,气相色谱-质谱联用技术对相对质量分数大于0.02%的挥发油成分进行了鉴定,共鉴定出54个成分,相对质量分数之和为94.02%,其中相对质量分数较高的有4-萜烯醇(20.22%)、γ-杜松烯(12.33%)、1,2,3,4,4a,7-六氢-1,6-二甲基-4-(1-甲基乙基)-萘(13.25%)、T-依兰油醇(11.85%)。该文报道工作的新颖性已为遵义医学院图书馆信息部2009年9月14日出具的第2009K043号《科技查新报告》所证实。 Iron hoops scattered Guizhou folk treatment of rheumatoid numbness, bruises commonly used herbs, the main active ingredient is volatile oil. Volatile oil was extracted by steam distillation from the rhizomes of Rhizoma heterophylla and GC-MS was used to identify the constituents of volatile oil with the relative mass fraction greater than 0.02%. A total of 54 constituents were identified with the relative mass fractions of 94.02% , Of which 4-terpene alcohol (20.22%), γ-cadinene (12.33%), 1,2,3,4,4a, 7-hexahydro- Yl-4- (1-methylethyl) -naphthalene (13.25%), T-llanhydrol (11.85%). The novel reported the novelty of this work has been confirmed by Science and Technology Report No. 2009K043 issued by Library Information Department of Zunyi Medical College on September 14,