To determin the related substances in the raw material of berberine hydrochloride by HPLC.A Spherigel C18 chromatographic column(150 mm×4.6 mm,5μm)was used with a mobile phase consisting of 0.02 mol∙L-1ammonium acetate-acetonitrile solution(70∶30)at the flow rate of 0.6 mL∙min-1.The detection wavelength was 265 nm,the temperature was 30 ℃,the injection was 10 μL and the detector was ultraviolet detector(UVD).The results showed that under the optimum conditions,the berberine hydrochloride and its related substances could be separated well(R>1.5).Berberine hydrochloride and its related substances showed a good linear relationship(R2>0.99).The established method is sensitive,effective,reproducible and easy to handle,which can be used for the determinating of the related substances in berberine hydrochloride.
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