Detection of Cinnabars in Mongolian Medicines Using Raman Spectroscopy
HAN Siqingaowa1, HASI Wuliji2*, LIN Xiang2, LIN Shuang2, YANG Fang2, LOU Xiu-tao2, Lü Zhi-wei2*
1. Affiliated Hospital Inner Mongolia University for the Nationalities, Tongliao 028043, China 2. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, China
Abstract：Cinnabar could soothe the nerves and the powder of cinnabar is always added in traditional Chinese medicine or mongolian medicines. The surface-enhanced Raman spectrum of cinnabar was identified using a portable Raman spectrometer and most structure vibration information was obtained. The results show that the Raman peaks of cinnabars were located at 253, 290, 343 cm-1 and this three Raman characteristic peaks were selected for cinnabar identification. Meanwhile, the Raman spectra of several mongolian medicines were collected. The results showed that Raman signal of cinnabar could be observed in several mongolian medicines which contain cinnabar and Raman signal of cinnabar couldn’t be detected in several mongolian medicines without cinnabar. In addition, the cinnabar in the oral ulcer powder was semi-quantitative analyzed and the limit of detection could reach to 10% of mass fraction. The relationship between the doped amount of cinnabar in the oral ulcer powder and the Raman intensity of characteristic peak was fitted and the correlation coefficient (r) was 0.995 9, which validated the accuracy of the result. This Raman analysis method for cinnabar detection is rapid, simple and accurate and it can be applied widely in mongolian medicines determination.
韩斯琴高娃1，哈斯乌力吉2*，林 翔2，林 爽2，杨 芳2，娄秀涛2，吕志伟2* . 利用拉曼光谱技术检测中蒙药中朱砂的研究 [J]. 光谱学与光谱分析, 2015, 35(10): 2773-2775.
HAN Siqingaowa1, HASI Wuliji2*, LIN Xiang2, LIN Shuang2, YANG Fang2, LOU Xiu-tao2, Lü Zhi-wei2* . Detection of Cinnabars in Mongolian Medicines Using Raman Spectroscopy . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(10): 2773-2775.
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