Study on Chinese Herb Astragalus Membranceus by FTIR Fingerprint
LI Gui-lan1，ZHAO Hui-hui2*，LIU Yang-qing1，ZHAO Ping3, PEI Xiao-li1，SUN Yu-jing1, TANG Xiang-yuan1
1. Shanxi College of Traditional Chinese Medicine，Taiyuan 030024, China 2. Beijing University of Chinese Medicine, Beijing 100029, China 3. Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
Abstract：The aim of the study is to find new approach to identifing 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. Conclusion: It is convenient and fast to identify different growth years and different producing areas of astragalus membranceus by FTIR fingerprint.
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