HPLC Determination of Berberine Hydrochloride in Xiaoyou Capsules / 中药新药与临床药理

ABSTRACT

Objective To establish a method for the content determination of berberine hydrochloride in Xiaoyou Capsules.Method A PR-HPLC method was adopted with a SHIMADZU RP-ODS C18 column as stationary phase and 0.05 mol/L KH2PO4(adjust pH to 3 with H3PO4)-Acetonitrile(7030)as mobile phase.The detector wavelength was at 265 nm,column temperature was at 40 ℃and the flow rate was 1.0 mL/min.Results Berberine hydrochloride in Xiaoyou capsules showed a good linearity in the range of 0.010 73～0.214 6 ?g.The average recovery was 99.87 %,RSD was 1.43 %.Conclusion The method is simple,reliable,with a good separation,so it can be used for the quality control of Xiaoyou Capsules.