LONG Hou-ning, YIN Chou, MENG Xiao-xia, et al. Simultaneous Detemination of Geniposide, Baicalin and Wogonoside in Yanreqing Soft Capsules by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(6): 34-37.
LONG Hou-ning, YIN Chou, MENG Xiao-xia, et al. Simultaneous Detemination of Geniposide, Baicalin and Wogonoside in Yanreqing Soft Capsules by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2016, 22(6): 34-37. DOI: 10.13422/j.cnki.syfjx.2016060034.
Objective: To establish a HPLC method to determine geniposide
baicalin and wogonoside in Yanreqing soft capsules. Method: The samples were degreased with petroleum ether and extracted with 70% methanol for 30 min in a ultrasonic mode. Diamonsil C18column (4.6 mm×250 mm
5 μm) was eluted with the mobile phase of acetonitrile-0.4% phosphoric acid in a gradient mode. The flow rate was 1.0 mL·min-1
the column temperature was 30 ℃
and the detection wavelength was set at 240 nm. Result: The average recoveries were 100.63% for geniposide with RSD of 1.9%;100.77% for baicalin with RSD of 1.5%;and 97.67% for wogonoside with RSD of 1.14%. Conclusion: The method is simple
accurate
highly sensitive
specific and repeatable. It can be used for the quality control of Yanreqing soft capsules.