Simultaneous Determination of the Content of Polydatin and Resveratrol in HuGanNing Tablets by HPLC
OBJECTIVE To establish a HPLC method for the determination of resveratrol and polydatin in Hu-ganning tablets.METHODS Chromatographic conditions:chromatographic column was Agilent XDB-C18(4.6 × 250 mm,5 µm),mobile phase∶acetonitrile∶water(A∶B)gradient elution(0-30 min:A 22%-40%,B 88%-60%;30-40 min:A 40%-22%,B 60%-88%);detection wavelength:306 nm;flow rate:1.0 mL·min-1 injection vol-ume:10 μL.RESULTS Polydatin in the range of 2.2298-22.2977 μg·mL-1 showed a good linear relationship(r=0.99999),the average recovery was 103.4%,RSD=1.5%;Resveratrol showed a good linear relationship in the range of 1.0008-10.008 μg·mL-1(r=0.9999),the average recovery was 99.7%,RSD=1.8%.CONCLUSION The method is simple,feasible and reproducible,and can be used for the quality control of HuGanNing tablets.