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[Study on HPCE fingerprint of Eucommiae Cortex].

Xing-Sheng Fu1, Le Han, Xun-Hong Liu

  • 1Nanjing University of Chinese Medicine, Nanjing 210046, China.

Zhong Yao Cai = Zhongyaocai = Journal of Chinese Medicinal Materials
|August 11, 2012
PubMed
Summary

High Performance Capillary Electrophoresis (HPCE) fingerprinting reliably identifies Eucommiae Cortex quality. This method distinguishes raw herbs from processed products by analyzing common peak differences.

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IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
The...