Simultaneous determination of seven triterpenoid saponins in Ilex kudingcha with HPLC / 中草药

ABSTRACT

Objective: To establish an HPLC method for simultaneously determining latifoloside G, latifoloside H, kudinoside G, latifoloside C, kudinoside A, kudinoside E, and kudinoside D in Ilex kudingcha. Methods: The separation was performed on a YMC C18 column (YMC-pack ODS-A, 250 mm × 4.6 mm, 5 μm) with water-acetonitrile as the mobile phase in a gradient elution at a flow rate of 1.0 mL/min. The detection wavelength was 210 nm and the column temperature was 30℃. Results: Seven triterpenoid saponins all have good separating degree, good linear range, and linearity (r > 0.999 5). The average sample recovery rates were 99.25%-100.8%, RSD < 2%. Conclusion: The established method is rapid, accurate, and with has repeatability and stability, which could provides the scientific evidence for the quality control of I. kudingcha.