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Published on: November 11, 2022
[Study on Chinese herb Astragalus membranceus by FTIR fingerprint]
Gui-Lan Li1, Hui-Hui Zhao, Yang-Qing Liu
1Shanxi College of Traditional Chinese Medicine, Taiyuan 030024, China. zyxylgl0306@126.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|August 17, 2010
Summary
Fourier Transform Infrared (FTIR) spectrometry offers a rapid method for distinguishing Astragalus membranaceus growth years and origins. This technique analyzes spectral fingerprints to identify key differences in samples.
Area of Science:
- Pharmacognosy
- Analytical Chemistry
- Spectroscopy
Background:
- Astragalus membranaceus is a vital herb in traditional medicine.
- Accurate identification of its growth years and geographical origins is crucial for quality control.
- Existing identification methods can be time-consuming and complex.
Purpose of the Study:
- To develop a simple and rapid approach for identifying different growth years and producing areas of Astragalus membranaceus.
- To utilize Fourier Transform Infrared (FTIR) spectrometry for this identification.
Main Methods:
- Samples of Astragalus membranaceus were collected.
- Simple separation and extraction were performed on dried powder samples.
- FTIR spectrometry was employed to obtain spectral data.
- Analysis focused on common and differential spectral peaks.
Main Results:
- FTIR analysis revealed 9 common peaks for authenticating Astragalus membranaceus.
- Five distinct peaks were identified, differentiating samples.
- The number, shape, and relative intensity of peaks allowed for distinction based on growth years and origin.
Conclusions:
- FTIR fingerprinting provides a convenient and fast method for identifying different growth years and producing areas of Astragalus membranaceus.
- This spectroscopic approach enhances the quality control of Astragalus membranaceus.
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