The chemical components of the essential oil from leaves of Beta vulgaris were analyzed by GC-MS metod. The essential oil was extracted from leaves of Beta vulgaris by steam distillation, and the amount of the components from the essential oil were determined by normalization method. The chemical components separated were identified by GC-MS method. There were 24 components consisted which were over 76.07% of the total essential oil. The method is reliable, stable and reproducible, and it can be applied to the analysis of chemical components in the essential oil extracted from chinese traditional medicine.%用气相色谱-质谱法对甜菜叶的挥发油进行化学成分分析.采用水蒸气蒸馏法从甜菜叶中提取挥发油,用归一化法测定其百分含量,并用气相色谱-质谱法对化学成分进行鉴定.共鉴定了24种成分,占挥发油总量的76.07％.本方法稳定可靠,重现性好,适合用于中药挥发油的化学成分分析.
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