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	Study on Traditional Chinese Medicine Extracts of Rhizoma Coptidis by FTIR Spectroscopy
	Wu Yan-wen ; Xiao Xiao-he ; Sun Su-qin ; Liu Hong-xia
	2010-10-12 ; 2010-10-12
关键词	Medicinal extracts Quality control FTIR Rhizoma coptidis Berberine MACRO-FINGERPRINT METHOD ANGELICA Spectroscopy
中文摘要	In the present paper we applied Fourier transform infrared spectroscopy (FTIR) and second derivative infrared spectroscopy to establish a rapid and efficient analytical method for a preliminary quality control of medicinal herb extracts. The commonly used Chinese herb medicine, Rhizoma coptidis, was taken as an example. The main component-berberine in rhizoma coptidis was analyzed as target compound. The results indicated that the IR spectra of rhizoma coptidis herb, its water and alcohol extracts, exhibit their macroscopic fingerprint characters with fine repeatability, and the corresponding secondary derivative spectra further confirmed the spectral characteristics of the original IR spectra by enhancing spectral resolution. The typical and strongest absorption band of IR spectrum of berberine is at 1 505 cm(-1), which is assigned to aromatic skeleton vibration band, and its intensities in spectra of rhizoma coptidis herb and its different extracts become the main identification standard of the contents of berberine in those samples. In additions comparing the IR spectra of the medicinal herb and its extracts, it was shown that the main bioactive components, alkaloids in rhizoma coptidis herb, are enriched by extraction, and the contents of berberine in alcohol extracts of rhizoma coptidis are higher than those in water extracts. The spectroscopic technique described is a simple and rapid analytical technique, which could provide valuable information about chemical constituents of medicinal extracts for guiding further chromatographic analysis and separation improvement.
语种	中文 ; 中文
出版者	BEIJING UNIV PRESS ; BEIJING ; HAIDIAN-QU, BEIJING 100871, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80931]
专题	清华大学
推荐引用方式 GB/T 7714	Wu Yan-wen,Xiao Xiao-he,Sun Su-qin,et al. Study on Traditional Chinese Medicine Extracts of Rhizoma Coptidis by FTIR Spectroscopy[J],2010, 2010.
APA	Wu Yan-wen,Xiao Xiao-he,Sun Su-qin,&Liu Hong-xia.(2010).Study on Traditional Chinese Medicine Extracts of Rhizoma Coptidis by FTIR Spectroscopy..
MLA	Wu Yan-wen,et al."Study on Traditional Chinese Medicine Extracts of Rhizoma Coptidis by FTIR Spectroscopy".(2010).

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