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. 2006 Jul;29(7):666-9.

[Fingerprints of Rhizoma Coptidis from Shizhu by HPLC]

[Article in Chinese]
Affiliations
  • PMID: 17059001

[Fingerprints of Rhizoma Coptidis from Shizhu by HPLC]

[Article in Chinese]
Xiao-ping Huang et al. Zhong Yao Cai. 2006 Jul.

Abstract

Objective: To establish a sensitive and specific HPLC method for the quality control of Rhizoma Coptidis collected from shizhu in chongqing.

Methods: The HPLC fingerprints of Rhizoma Coptidis from shizhu were obtained from Waters instrument. The methods was performed on a Diamonsil C18 column gradient eluted with acetonitrile-0.05 mol/L KH2PO4 (pH3 with H3PO4) at the flow rate of 0.8 m/min. The temperature of column was 25 degrees C and the UV detection wavelength was 270nm.

Results: The HPLC fingerprint of Rhizoma Coptis, showing 16 characteristic peaks, was established from 10 lots of Rhizoma Coptis. By comparision of the retention time and the on-line UV spectra of chemical standards, peak 11, 12, 13, 14 and 15 were identified as Epiberberine, Jatrorrhizine, Coptisine, Palmatine and Berberine.

Conclusion: The HPLC fingerprint of Rhizoma Coptidis with high specificity can be used to control its quality.

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