18(250 mm×4.6 mm,5 μm);流動(dòng)相為乙腈-0.03 mol/L磷酸二氫鉀(35∶65);檢測(cè)波長(zhǎng)345 nm;體積流量1.0 mL/min。結(jié)果 線性范圍為25.5~510.0 ng(r=0.999 9),平均回收率為99.39%,RSD為0.87%。結(jié)論 該方法穩(wěn)定、可靠,可作為清胃黃連丸的質(zhì)量控制方法。;Objective To establish an HPLC method to determine berberine in Qingwei Huanglian Pills. Methods Berberine was assayed on a Phenomenex Luna C18 column (250 mm × 4.6 mm, 5 μm); The mobile phase composed of acetonitrile-0.03 mol/L potassium dihydrogen phosphate (35:65) at a flow rate of 1.0 mL/min; The determination wavelength was 345 nm. Results The calibration curves were linear in the range of 0.025 5—0.510 0 μg (r = 0.999 9) for berberine. The average recoveries (n = 6) of berberine was 99.39% (RSD = 0.87%). Conclusion The method is proved to be simple and reliable and could be used for quality control of Qingwei Huanglian Pills."/>