GC-MS联用技术分析广金钱草中的挥发性成分

Analysis of the Volatile Components in Desmodium Styracifoolium ( Osbeck) Merr. by GC-MS

目的:用气相色谱质谱联用技术(GC-MS)对广金钱草水蒸气蒸馏的挥发性成分进行分析。方法:采用GC-MS测定并结合NIST2011质谱库进行检索,用峰面积归一化法测定各成分的相对百分含量。结果:从广金钱草中共鉴定出119个成分,占挥发性总成分97.03%。广金钱中的主要挥发性成分为:壬醛8.68%、大马士酮3.84%、香叶基丙酮1.75%、β-紫罗酮1.63%、2,6-二叔丁基对甲基苯酚2.25%、1H-非那烯4.48%、菲21.98%、植酮19.68%、法尼基丙酮4.06%和异植物醇1.81%。结论:本实验采用GC-MS分析方法对广金钱草水蒸气蒸馏的挥发性成分进行分析,可为合理开发利用广金钱草资源提供科学依据。

Objective： The volatile components of the steam distillation were analyzed by gas chromatography mass spectrometry（GC-MS）. Methods： The volatile components were determined by GC-MS, the composition name was searched by NIST2011 mass spectrometry, and the relative percentile content of each component was calculated by the normalization method of peak area. Results： A total of 119 components, accounting for 97.03 % of the total volatile components, were identified from Desmodium styracifoolium（Osbeck） Merr.. The main volatile components in Desmodium styracifoolium(Osbeck） Merr. as follows： nonanal（8.6 %）, beta-damascenone（3.84 %）, Geranylacetone（1.75 %）, trans-á-Ionone（1.63 %）, butylated hydroxytoluene（2.25 %）, 1 H-phenalene（4.48 %）, phenanthrene（21.98 %）, fitone（19.68 %）, farnesylaceton（4.06 %）, isophytol（1.81 %）. Conclusion： In this study, gc-ms analysis was used to analyze the volatile components of the steam distillation from Desmodium styracifoolium(Osbeck） Merr., which could provide scientific basis for the rational development and utilization of the resources.