摘要
目的:以青皮为例,研究在质谱定性的基础上,保留指数在中药挥发油成分鉴定中的作用。方法:GC-MS测定青皮挥发油及参比物(系列正构烷烃)的总离子流谱图。根据相关公式计算各待鉴定化合物的保留指数。应用MS与保留指数结合的方式对化合物定性。结果:一些化合物具有几乎相同的质谱,通过保留指数的差异却可以区分它们。结论:保留指数在中药挥发油成分定性中发挥着重要作用。
Objective: To study the function of retention index(RI) on the qualitative results based on the MS qualitative outcome of volatile oil from Chinese material medica(CMM) as Citri Reticulatae Pericarpium Viride(CRPV).Method: The total ion chromatograms from essential oil of CRPV and referred materials as series n-alkanes were gotten by the GC-MS.The RIs of constituents in volatile oil were calculated by a related formula.The components were recognized by MS and RIs.Result: Some compounds have essentially identical mass spectra,while they can be discriminated by RIs.Conclusion: RI plays an important role in the identification of constituents in essential oil from CMM.
出处
《中国实验方剂学杂志》
CAS
北大核心
2013年第14期92-96,共5页
Chinese Journal of Experimental Traditional Medical Formulae
基金
国家自然科学基金项目(81072991)
四川省教育厅自然科学重点项目(09ZA033)
关键词
保留指数
青皮
挥发油
定性
气相色谱质谱联用仪
retention index(RI)
Citri Reticulatae Pericarpium Viride(CRPV)
volatile oil
qualitative analysis
GC-MS