ZHANG Wen-jie, GUAN Da-ping, QIAN Shi-bing. Determination of Ursolic Acid and Oleanolic Acid in Zuogui Wan by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(5): 92-94.
ZHANG Wen-jie, GUAN Da-ping, QIAN Shi-bing. Determination of Ursolic Acid and Oleanolic Acid in Zuogui Wan by HPLC[J]. Chinese journal of experimental traditional medical formulae, 2012, 18(5): 92-94.DOI:
Objective: To establish a HPLC method for the determination of ursolic acid and oleanolic acid in Zuogui Wan. Method: The method was applied with Sunfire C18 column by methanol-water (25∶75
adjust pH to 6.5 with sodium dihydrogen phosphate) as the mobile phase
with the flow rate 1.0 mL·min-1. The column temperature was maintained at 25 ℃ and the UV detection wavelength was set at 215 nm. Result: Oleanolic acid was linear in the range of 0.05-1.0 μg (r=0.999 9)
the average recovery was 97.7% (RSD 1.39
n=6). Ursolic acid was linear in the range of 0.1-2.0 μg (r=0.999 9)
the average recovery was 98.3% (RSD 0.82
n=6). Conclusion: The method can be used for determination of oleanolic acid and ursolic acid in Zuogui Wan.