RESUMO
OBJECTIVE:To determine the content of chrysophanol in Diedazhitong cataplsam by HPLC.METHODS:The samples were separated on a Kromasasil C 18 ,methol-0.1%phosphoric acid(85∶15)was taken as the mobile phase with a flow rate at1.0ml/min and detection wavelength at254nm,the sample size was10?l.RESULTS:Good linear relationship was achieved when the concentration range of chrysophanol was0.6?g～4?g(r=0.9994);The average recovery of chrysophanol was99.23%(n=5,RSD=2.45%).CONCLUSION:This method is accurate,reliable,and reproducible.
RESUMO
Objective To establish a method for the determination of arctiin in Pifu Zhiyang Tablets by SPE-HPLC . Methods SPE-HPLC method was performed on a Kromasil C18 column(150 mm?4.6 mm ,5 ?m),the mobile phase consisted of methanol -1 %acetic acid (35 ∶65) ,the wavelength was 283nm . Results The linear range of arctiin was 1.5～4.5 ?g(r= 0. 999 8) ,the average recovery was 98.18 %with RSD of 2.08 %. Conclusion This method is accurate ,reliable and reproducible. It can be used for the determination of arctiin in Pifu Zhiyang Tablets .