【摘要】 目的:建立鱼腥草挥发油中有效成分甲基正壬酮的气相色谱分析测定方法。方法:色谱条件为填充色谱柱（3mm×2m）,程序升温:90℃（0.5min）10℃·min^-1130℃（0.5min）3℃·min^-1137℃（0.5min）1℃·min^-1140℃（0.5min）10℃·min^-1180℃（1 min）;FID 检测器,采用外标标准曲线法。结果:甲基正壬酮浓度在0.151～0.604mg·mL^-1范围内呈线性关系（r=0.9995）,鱼腥草样品的进样精密度（RSD）为1.6%,24h 内稳定性 RSD 为3.8%,平均回收率为99.3%,RSD 为2.5%。结论:该法简便、灵敏,易操作,可用于测定鱼腥草挥发油中甲基正壬酮的含量,并为鱼腥草植物资源的开发利用奠定了基础。更多还原

【Abstract】 Objective:To set up a method to determine methyl-n-nonyl-ketone in volatile oil of Herba Hout- tuyniae by gas chromatography.Methods:A filled in column was used and the temperature of column（3mm× 2m）was programmed.The FID was used as detector and external standard curve was used.Results:The standard curve was in good linearity over the range of 0.151-0.604 mg·mL^-1（r=0.9995）.The average recovery was 99.3%with RSD of 2.5%.Conclusions:This method can be used for quality assessment of Houttuynia cordata Thunb.It is rapid,sensitive,precise with good reproducibility.更多还原