Identif ication of Herba Sedi collected in the different habitats and periods by FT-IR
- VernacularTitle:不同产地与不同采收期垂盆草药材的红外光谱鉴别研究
- Author:
Li ZHAO
;
Ran XU
;
Dingrong WAN
- Publication Type:Journal Article
- Keywords:
The crude drug Herba Sedi;
Harvest seasons;
Habitats;
IR spectra
- From:
China Journal of Traditional Chinese Medicine and Pharmacy
2005;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To explore the characteristics of IR spectra of the crude drug Herba Sedi collected in different habitats and seasons.Methods: The infrared spectra of all the samples of the whole plants were obtained by FT-IR spectroscopy,the sample powder tablets were used,and identifi cation features were determined through comparative study.Results: The harvest seasons of the samples are remarkly related to the positions(cm-1),intensity or ratios of some major absorbing peaks of the infrared spectra from the 15 samples of several different months and 4 habitats in Hubei Province,China.As for peak positions,the peak values(1625?7)cm-1 of all the samples in spring are less than 1623cm-1,but in autumn(April to October) are generally more than 1628 cm-1.And peak values(1057?16)cm-1 of the samples of spring are more than 1050 cm-1,but less than 1050 cm-1 for the samples of summer and autumn.Moreover,the habitats of samples are also related to IR spectra to some certain extent.Conclusion: The harvest seasons of Herba Sedi from Hubei Province can be preliminarily ascertained according to the IR spectra features.IR technique should be paid attention to in research and identifi cation of the harvest periods of crude plant drugs.
