We employed high performance liquid chromatography (HPLC) method coupled with diode array detector (DAD) for the determination of seven major bioactive compounds (forsythoside A, specnuezhenide, phillyrin, schisa...We employed high performance liquid chromatography (HPLC) method coupled with diode array detector (DAD) for the determination of seven major bioactive compounds (forsythoside A, specnuezhenide, phillyrin, schisandrin, schisantherin A, deoxyschizandrin and schisandrin B) in Liuwei Wuling tablet (LWWLT). The HPLC baseline separation was carried out on an Inertsil ODS-3 column (250 mm×4.6 mm, 5 μm) at 25 ℃ with a gradient elution system composed of 0.1% phosphoric acid solution and acetonitrile. The detection wavelength was set at 230 nm. Calibration curves for seven compounds showed good linear regressions, with correlation coefficients exceeding 0,999 within the tested concentration range. The limits of detection and quantification of each compound were in the range of 0.03-0.28 μg/mL and 0.11-0.87μg/mL, respectively. The relative standard deviation values of precision, stability and repeatability were less than 2.34%. The average recovery of all seven constituents ranged from 96.71% to 103.9%. The validated quantification method was successfully applied for the analysis of 10 batches of commercial LWWLT from Shandong Shibo Jindu Pharmaceutical Co., Ltd. These results would make foundations for quality control and the further pharmacology study of LWWLT.展开更多
基金State Project for Essential Drug Research and Development(Grant No.2012ZX09J12108-04C)Special Project of Military Health Ministry(Grant No.13ZJZ12-5)
文摘We employed high performance liquid chromatography (HPLC) method coupled with diode array detector (DAD) for the determination of seven major bioactive compounds (forsythoside A, specnuezhenide, phillyrin, schisandrin, schisantherin A, deoxyschizandrin and schisandrin B) in Liuwei Wuling tablet (LWWLT). The HPLC baseline separation was carried out on an Inertsil ODS-3 column (250 mm×4.6 mm, 5 μm) at 25 ℃ with a gradient elution system composed of 0.1% phosphoric acid solution and acetonitrile. The detection wavelength was set at 230 nm. Calibration curves for seven compounds showed good linear regressions, with correlation coefficients exceeding 0,999 within the tested concentration range. The limits of detection and quantification of each compound were in the range of 0.03-0.28 μg/mL and 0.11-0.87μg/mL, respectively. The relative standard deviation values of precision, stability and repeatability were less than 2.34%. The average recovery of all seven constituents ranged from 96.71% to 103.9%. The validated quantification method was successfully applied for the analysis of 10 batches of commercial LWWLT from Shandong Shibo Jindu Pharmaceutical Co., Ltd. These results would make foundations for quality control and the further pharmacology study of LWWLT.