Simultaneous determination of six components in Shangke Dieda Tablets by UPLC
Objective:To establish a UPLC method for the simultaneous determination of paeoniflorin,naringin,hesperidin,neohesperidin,costunolide and dehydrocostuslactone to improve the quality standard of Shangke Dieda Tablets.Methods:An Agilent Poroshell 120 C18 column(100 mm × 4.6 mm;2.7 μm)was used with a mobile phase of acetonitrile and 0.1%phosphate solution with binary gradient system at a flow rate of 1.0 mL·min-1.The detection wavelength was 230 nm and the column temperature was 30 ℃.Results:Paeoniflorin,naringin,hesperidin,neohesperidin,cosinolide and dehydrocosinolide showed a good linear relationship between injection concentration and peak area(r>0.999).The linear ranges of six components were 0.854 2-256.272 μg·mL-1(r=0.999 9),1.057 5-317.247 µg·mL-1(r=0.999 9),and 0.989 5-269.850 µg·mL-1(r=0.999 9),1.055 6-316.689 μg·mL-1(r=0.999 9),0.905 1-271.527 μg·mL-1(r=0.999 8),and 1.064 7-319.395 μg·mL-1(r=0.999 9),respectively.The average recoveries of six components were 99.4%(RSD=1.2%),104.0%(RSD=1.2%),101.6%(RSD=1.0%),102.9%(RSD=0.4%),97.0%(RSD=1.9%),and 104.2%(RSD=1.0%),respectively.A total of 74 batches of samples were collected from 10 manufacturers.The contents of paeoniflorin,naringin,hesperidin,neohesperidin,coxinolactone,and dehydro-cosinolactone were 0.250 8-0.653 2,0.042 2-0.930 9,0.590 9-3.978 0,0.021 2-0.592 6,0.002 4-0.156 7,0.009 2-0.231 3 mg per tablet,respectively.Conclusion:The validated results showed that the method can be used to control the quality of Shangke Dieda Tablets.