ZHU Wei-feng, LUO Ling-ying, ZUO Zheng-yun, et al. Determination of Oleanolic Acid in Erzhi Pills by RP-HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(6): 101-103.
ZHU Wei-feng, LUO Ling-ying, ZUO Zheng-yun, et al. Determination of Oleanolic Acid in Erzhi Pills by RP-HPLC[J]. Chinese journal of experimental traditional medical formulae, 2010, 16(6): 101-103.DOI:
目的 :建立二至丸中齐墩果酸的含量测定的方法。 方法 :采用Venusil X B P-C18 柱( 4.6 mm×250 mm
5 μm)
以甲醇- 0.4%乙酸铵溶液(83 ∶17)为流动相
检测波长210 nm
柱温25 ℃
流速1.0 mL ·min-1。 结果 :齐墩果酸在0.100 4~1.807 μg呈线性关系(r=0.999 8)
平均回收率为99.7% (RSD 1.75% )。 结论 :此方法操作简便、可靠
重现性好
专属性强
能有效控制该制剂的质量。
Abstract
Objective: To develop a RP-HPLC method to determine the contents of oleanolic acid in Erzhi Pills. Method :The samples was separated on a Venusil X B P-C18 column ( 4.6 mm×250 mm
5 μm)
using methanol-0.4 % ammonium acetate solution (83 ∶17) as the mobile phase with flow rate of 1 mL ·min-1 and detection at 210 nm. The column temperature was maintained at 25 ℃. Result :the linear range of oleanolic acid was at 0.1004~1.807 μg (r=0.999 8). The average recovery of oleanolic acid was 99.7%
RSD 1.75%(n=6). Conclusion :The method is simple
accurate
and can be used for quality evaluation of Erzhi Pills.