【摘要】 目的 研究碎米桠(Herba Rabdosiae Rubescentis)挥发性成分。 方法 利用有机溶剂-水蒸汽蒸馏提取碎米桠挥发性成分，用GC/MS进行分离测定，结合计算机检索技术对分离的化合物进行结构鉴定，应用色谱峰面积归一化法计算各成分的相对百分含量。 结果 分离出115个成分，确定了82个化合物，占挥发油总量的86.257%。 结论 碎米桠挥发油成分>2%的为1，8-桉树脑18.948%，α-蒎烯4.656%，芳樟醇4.389%，樟脑3.863%，石竹烯氧化物3.790%，β-蒎烯2.449%，薄荷酮2.418%，丙酸芳樟酯2.131%，丙烯2.090%，萜品烯-4-醇2.022%。含量最高的化合物为1，8-桉树脑。

    关键词 碎米桠 有机溶剂-水蒸汽蒸馏 挥发油 气相色谱-质谱联用

    Determination of volatile constituents of Herba Rabdosiae Rubescentis

    Liu Jianhua，Liu Huiling，Dai Zeqin，et al.

    Guizhou Institute of Biotechnology Research and Development Gui zhou550002.

    【Abstract】 Objective To study the chemical constituents of volatile oil from Herba Rabdosiae Rubescentis.Methods The oil was obtained by steam distillation.The chemical compounds were separated and identified by GC/MS.The relative contents in the oil were determined by area nomalization.Results One hundred and fifteen com-ponents were detected in the volatile constituents of Herba Rabdosiae Rubescentis ......