不同贮存期艾叶正构烷烃的GC-MS分析

GC-MS Analysis of N-alkanes in Artemisia Argyi of Different Storage Periods

目的探索艾叶燃烧与艾灸光热效应的机制。方法对产于湖北蕲春的1、3、5年艾叶用梯度溶剂萃取法提取,硅胶柱层析洗脱得到正构烷烃,进行气质联用(GC-MS)分析。结果 1、3、5年艾叶正构烷烃含量(TOA)分别为318.65、528.23和394.20?g/g。从这3种年份的艾叶中共检出17类正构烷烃,均以31碳烷烃的含量最高。结论由于正构烷烃影响艾叶燃烧温度与燃烧稳定性,它可能是解释"犹七年之病,求三年之艾"的物质基础。

Objective To explore the mechanisms of Artemisia argyi burning and moxibustion photo-thermal effect.Methods N-alkanes were obtained by gradient solvent extraction and silica gel column chromatography elution from 1, 3 and 5 years’ Artemisia argyi produced in QiChun, Hubei and analyzed by gas chromatography mass spectrometry （GC-MS）.Results The n-alkane contents of 1, 3 and 5 years’ Artemisia argyi were 318.65, 528.23 and 394.20μg/g, respectively. A total of seventeen kinds of n-alkanes were detected from the Artemisia argyi of three kinds of years. The 31 carbon alkane content was highest in all of them. Because N-alkanes affect the temperature and stability of Artemisia argyi burning, it may be the material basis for explaining “worrying seven years’ diseases seek 3 years’ Artemisia argyi”.