Determination of main component in volatilization oil from Kaempferia Galanga L.
- VernacularTitle:中药山奈挥发油主要成分的测定
- Author:
Li HONG
- Publication Type:Journal Article
- Keywords:
Kaempferia galanga L.;
GC-MS;
UV-Vis;
IR;
NMR;
structure determination
- From:
China Journal of Traditional Chinese Medicine and Pharmacy
2005;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze and determine the main component in volatilization oil which is extracted from the Chinese herbal medicine Kaempferia galanga L.Methods:Volatilization oil is obtained by steam-distillation from commercial available Kaempferia galanga L..After re-crystallization,GC-MS,UV-Vis,NMR,IR were processed for analysis and structure determination.Results:The m/z=205 peak in MS represents the quasi-molecular ion peak.The strongest absorption peak at 304nm in UV-Vis shows that there is big conjugated system in the molecule.Along with the data of chemical shifts and coupling constants of 1H-NMR,13C-NMR and wave numbers of IR absorption peaks,the main ingredient of Kaempferia galanga L.volatilization oil is verified as ethyl 3-(4-methoxyphenyl)-(E)-acrylate.Conclusion:We have employed advanced methods in separation and analysis in the determination of structure of the main ingredient in volatilization oil extracted from Kaempferia galanga L.and get detailed data to support the results,the methods are reliable and the results are dependable.
