[Study on Chinese herb Astragalus membranceus by FTIR fingerprint].
The aim of the study is to find new approach to identifying different growth years and different producing areas of astragalus membranceus simply and rapidly. The FTIR spectrometry, which is accurate, simple and efficient and has high resolution, was used to obtain the sample's FTIR spectrometry. After simple separation and extraction, the drying powder of the sample was detected. In 22 samples, there were 9 common peaks for identifying the authenticity of astragalus membranceus and 5 different peaks. According to the number, shape, and relative intensity of the peak, different growth years and different producing areas of astragalus membranceus can be distinguished.


CONCLUSIONS
It is convenient and fast to identify different growth years and different producing areas of astragalus membranceus by FTIR fingerprint.
Li
Gui-Lan
GL
Shanxi College of Traditional Chinese Medicine, Taiyuan 030024, China. zyxylgl0306@126.com
Zhao
Hui-Hui
HH
Liu
Yang-Qing
YQ
Zhao
Ping
P
Pei
Xiao-Li
XL
Sun
Yu-Jing
YJ
Tang
Xiang-Yuan
XY
D027885:Astragalus propinquus / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared
D004365:Drugs, Chinese Herbal