Zheng Weibing, Zhao Dong, Chen Zhipin. Determination of Osthole in Relieving Itching Anti-Inflammation Fluid by High Performance Liquid Chromatography[J]. 2020,26(7):50-51.
Objective: To establish the high performance liquid chromatography (HPLC) method for the determination of osthole in relieving itching anti-inflammation fluid. Methods: HPLC was used with osthole as the reference substance. The chromatographic column was ZORBAX Eclipse Plus C18 (250 mm×4.6 mm
5 um). The mobile phase was acetonitrile-water (65∶35)
the flow rate was 1.0 mL/min
the column temperature was 35 ℃
and the detection wavelength was 322 nm
with injection volume of 10 μL. Results: The linear range of osthol was 15.936 μg/mL to 63.744 μg/mL (r=0.999
9)
and the average recovery was 100.6% (n=6). The average content of osthol in three batches of samples was 0.291 mg/mL. Conclusion: This method is highly specific
reproducible
reliable and simple
which can be used as the method for the determination of osthole in relieving itching anti-inflammation flu