HU Jun-hua, WANG Xiao-jiao, QIAO Shan-yi, et al. Investigation of Dissolution of Three Components in Liuwei Dihuang Gantang Tablets[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(13): 15-18.
HU Jun-hua, WANG Xiao-jiao, QIAO Shan-yi, et al. Investigation of Dissolution of Three Components in Liuwei Dihuang Gantang Tablets[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(13): 15-18. DOI: 10.13422/j.cnki.syfjx.2016130015.
Objective: To establish a method for determining in vitro dissolution of three components in Liuwei Dihuang Gantang tablets. Method: HPLC was adopted to determine contents of morroniside
loganin and paeoniflorin with the mobile phase of methanol-acetonitrile-water for gradient elution and the detection wavelength at 236 nm.Taking water as dissolution medium
cup method was employed to determine in vitro dissolution of these three components. Result: The linear ranges of morroniside
loganin and paeoniflorin were 4.87-155.75
4.86-155.35
2.83-180.85 mg·L-1 with average recoveries of 99.88%(RSD 1.6%)
101.10%(RSD 1.8%) and 100.20%(RSD 1.4%)
respectively.The accumulation dissolution of each component in 90 minutes was more than 75%. Conclusion: Differences of the accumulation dissolution of morroniside
loganin and paeoniflorin in identical batch and different batches of samples are small.This established method is repeatable for quality control of Liuwei Dihuang Gantang tablets.