Application of Fourier Transform Infrared Spectra (FTIR) Fingerprint in the Quality Control of Mineral Chinese Medicine Limonitum

作者：Liu Sheng-jin; Yang Huan; Wu De-kang^*; Xu Chun-xiang; Lin Rui-chao; Tian Jin-gai; Fang Fang

来源：Spectroscopy and Spectral Analysis, 2015, 35(4): 909-913.

DOI：10.3964/j.issn.1000-0593(2015)04-0909-05

• Mineral Chinese medicine
• Limonitum
• FTIR
• Fingerprints

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.

• 出版日期2015-4
• 单位江苏省食品药品检验所; 南京中医药大学