Application of Infrared Spectroscopy and Chemometrics Methods to Identifying the Habitat of Astragalus membranaceus
- VernacularTitle:红外光谱法结合化学计量学方法鉴别黄芪产地
- Author:
Lei ZHANG
;
Lei NIE
;
Weihong WANG
- Publication Type:Journal Article
- Keywords:
Infrared spectroscopy;
Chemometrics method;
Astragalus membranaceus;
Solvent extraction;
Habitat identification
- From:
China Pharmacy
2005;0(19):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To identify the habitat of Astragalus membranaceus by Fourier transform infrared spectroscopy and chemometrics methods.METHODS:An evaluation method for selecting solvent applied to extract 86 samples from 5 different habitats as a pretreatment method was proposed.IR spectra were used to detect samples coated with KBr.Partial least squares (PLS) were used to identify the habitats of A.membranaceus.Significant IR spectral wave numbers were selected by PLS-VIP score.RESULTS:In single-solvent extraction method butanone extract had IR spectra characteristics.The incidence of successful identification was 100% and selected IR spectral wave were valuable for identification.CONCLUSION:FT-IR spectroscopy combined with chemometrics method can be used to identify the habitats of A.membranaceus.
