Application of Fourier Transform Infrared Spectra (FTIR) Fingerprint in the Quality Control of Mineral Chinese Medicine Limonitum
LIU Sheng-jin1, YANG Huan1, WU De-kang1*, XU Chun-xiang2, LIN Rui-chao3, TIAN Jin-gai3, FANG Fang1
1. School of Pharmacy, Nanjing University of Chinese Medicine; Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization; National and Local Collaborative Engineering Center ofChinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing 210023，China 2. Jiangsu Institute for Food and Drug Control，Nanjing 210008，China 3. National Institute for Food and Drug Control，Beijing 100050，China
Abstract：In the present paper, the fingerprint of Limonitum (a mineral Chinese medicine) by FTIR was established，and the spectrograms among crude samples，processed one and the adulterant sample were compared．Eighteen batches of Limonitum samples from different production areas were analyzed and the angle cosine value of transmittance (%)of common peaks was calculated to get the similarity of the FTIR fingerprints．The result showed that the similarities and the coefficients of the samples were all more than 0.90. The processed samples revealed significant differences compared with the crude one. This study analyzed the composition characteristics of Limonitum in FTIR fingerprint, and it was simple and fast to distinguish the crude, processed and the counterfeit samples. The FTIR fingerprints provide a new method for evaluating the quality of Limonitum.
Key words：Mineral Chinese medicine;Limonitum;FTIR;Fingerprints
刘圣金1，杨 欢1，吴德康1*，徐春祥2，林瑞超3，田金改3，房 方1 . FTIR指纹图谱技术在禹余粮质量控制中的应用 [J]. 光谱学与光谱分析, 2015, 35(04): 909-913.
LIU Sheng-jin1, YANG Huan1, WU De-kang1*, XU Chun-xiang2, LIN Rui-chao3, TIAN Jin-gai3, FANG Fang1. Application of Fourier Transform Infrared Spectra (FTIR) Fingerprint in the Quality Control of Mineral Chinese Medicine Limonitum. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(04): 909-913.
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