ZHANG Jun, WANG Yue-sheng, LI Hui, et al. Determination of dl-tetrahydropalmatine and imperatorin in Yuanhuzhitong dispersible tablet by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2009, 15(12): 10-12.
ZHANG Jun, WANG Yue-sheng, LI Hui, et al. Determination of dl-tetrahydropalmatine and imperatorin in Yuanhuzhitong dispersible tablet by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2009, 15(12): 10-12.DOI:
Objective:To develop a rapid HPLC method for determination of dl-tetrahydropalmatine and imperatorin in Yuanhuzhitong dispersible tablet.Method:dl-tetrahydropalmatine and imperatorin were extracted by reflux extraction method with methanol.A kromasil C18(5 μm
4.6 mm×250 mm)column was used with the mobile phase of acetonitrile-methanol-0.1% phosphoric acid(pH was adjusted to 6.0 by triethylamine)(41∶13∶46)at the detection wavelength of 280 nm.The flow rate was 0.8 mL·min-1 at the column temperature of 40 ℃.Results:The dl-tetrahydropalmatine peak and imperatorin peak can be separated perfectly.The negative samples were not found interference in this condition.The method is accurate.Conclusion:The method is suitable for the determination of dl-tetrahydropalmatine and imperatorin in Yuanhuzhitong dispersible tablet.