1. Department of Chemistry, Shaoguan College, Shaoguan 512005, China 2. Yuebei People’s Hospital, Shaoguan 512026, China 3. Faculty of Chemistry and Light Engineering, Guangdong University of Technology, Guangzhou 510090, China
Abstract：The infrared spectrum of Chinese herbs possesses the character similar to fingerprint .The purpose to identify Chinese herbs can be achieved by way of comparing these spectra. The software of comparing correlation coefficient array of FTIR spectra was designed in Visual Basic 6.0. It established an infrared spectrum database including more than 300 kinds of Chinese herbs. The FTIR spectra of unknown herb can be compared with those of Chinese herbs in the database, and this method can identify the suitable herbs according to the similar herbs in the database. The study shows that within the spectral database of herbs, the factors of spectral interference, such as H2O, CO2,etc., can be avoided through assigning threshold values of correlation coefficients and comparing spectra with characteristic peak bands, and the comparison result is credible and correct. This method was expected to be a common method in identifying Chinese herbs.
Key words：Intrared spectroscopy;Correlation coefficient array;Chinese herbs;Identification of Chinese herbs
徐永群1,邓三尧2,李兴旺3,陈小康1 . 阵列相关系数比对法在中药鉴别中的应用研究[J]. 光谱学与光谱分析, 2007, 27(11): 2239-2242.
XU Yong-qun1,DENG San-yao2,LI Xing-wang3,CHEN Xiao-kang1. Application of Comparison Method with Correlation Coefficient Array in Identification of Chinese Herbs. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2239-2242.
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