GC-MS 与改进顶空法联用研究薰衣草精油化学成分
Study on Lavender Essential Oil Chemical Compositions by GC-MS and Improved pGC.
机构信息
The Key Laboratory of Plant Resources and Chemistry of Arid Zone, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi 830011, China.
School of Chemical Science, University of the Chinese Academy of Sciences, Beijing 100039, China.
出版信息
Molecules. 2020 Jul 10;25(14):3166. doi: 10.3390/molecules25143166.
Abstract
Lavender essential oil from the aerial parts of Mill. was analyzed by GC-MS equipped with three capillary columns of different polarities, which were HP-1, HP-5 ms and HP-INNOWax. A total of 40 compounds were identified by GC-MS, accounting for 92.03% of the total essential oil compositions. Nineteen monomers were separated by column chromatography and improved preparative gas chromatography (pGC), six of which could not be retrieved from the NIST 14 (National Institute of Standards and Technology, USA; 14th edition) library database. Fifteen compounds were identified for the first time in lavender essential oil. The improved pGC not only doubled the efficiency but also greatly reduced the cost.
摘要
采用 HP-1、HP-5ms 和 HP-INNOWax 三根不同极性的毛细柱对薰衣草地上部分的精油进行气相色谱-质谱联用分析，共鉴定出 40 个化合物，占精油总成分的 92.03%。通过柱层析和改进的制备气相色谱（pGC）分离出 19 个单体，其中 6 个单体不能从 NIST 14（美国国家标准与技术研究所；第 14 版）库数据库中检索到。15 种化合物在薰衣草精油中首次被鉴定出来。改进的 pGC 不仅使效率提高了一倍，而且大大降低了成本。
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