气相色谱法测定姜味草挥发油中橙花醛与香叶醛

GC Determination of Neral and Geranial in Volatile Oil of Micromeria Biflora.

采用水蒸气蒸馏法提取姜味草挥发油,用气相色谱法-氢火焰离子化检测器测定挥发油中橙花醛和香叶醛的含量。橙花醛和香叶醛的线性范围分别为0.0971～0.5826g·L^(-1)和0.1152～0.6912g·L^(-1)方法用于测定4批次姜味草挥发油中橙花醛与香叶醛的含量,橙花醛与香叶醛的质量分数分别为25.00%,29.57%,26.30%,28.59%和36.41%,43.80%,38.72%,41.52%。

The volatile oil of Micromeria biflora,was extracted by steam distillation,and the contents of neral and geranial in volatile oil were determined by GC with flame ionization detector（FID）.Linearity ranges of neral and geranial found were between 0.097 1-0.582 6 g·L^（-1） and 0.115 2-0.691 2 g·L^（-1） respectively.The proposed method was applied to the analysis of samples from 4 batches of volatile oil of Micromeria biflora.,giving the results as follow：25.00%.29.57%,26.30%,28.59%for neral and 36.41%,43.80%,38.72%,41.52% for geranial.