摘要
目的:建立了运用 RP-HPLC 同时测定四川不同产地枇杷花中2种五环三萜类化合物—齐墩果酸和熊果酸含量的方法。方法:采用 Apollo RP-C_(18)色谱柱(4.6 mm×250 mm,5 μm),甲醇-0.1%醋酸水溶液(pH 3.4)(94∶6)为流动相,流速0.5 mL·min^(-1);紫外检测波长210 nm,柱温20℃。结果:齐墩果酸和熊果酸的标准曲线线性范围分别为25.3~507 mg·L^(-1)(r=0.9996,n=7)和9.11~182 mg·L^(-1)(r=0.9997,n=7);加样回收率分别为101.0%和101.1%,RSD<4.0%。结论:该法简便、准确,重复性好,适用于枇杷花中齐墩果酸和熊果酸的定量分析。
Objective: To develop an RP - HPLC method for the determination of oleanolic acid and ursolic acid in flowers of Eriobotrya japonica ( Thunb. ) Lindl. from different habits of Sichuan. Methods: The separations were cartied out on an Alltech Apollo RP -C18 cohmn(4. 6 mm ×250 mm ,5μm)eluted with methanol -0.1% acetic acid aqueous solution(pH 3.4) (94: 6) ,as mobile phase at a flow rate of 0.5 mL · min^-1 ,at 20 ℃ and UV detection at 210 nm. Results:The calibration curves of oleanolic acid and ursolic acid were in good linearity in the range of 25.3 - 507 mg·L^-1 ( r = 0. 9996, n = 7 ) and 9. 11 - 182 mg·L^-1 ( r = 0. 9997, n = 7 ), respectively. The recoveries were 101.0% for oleanolic acid and 101.1% for ursolic acid,with RSD 〈4. 0%. Conclusion:The method is simple ,accurate and reproducible for quality control of flowers of Eriobotrya japonica(Thunb. )Lindl.
出处
《药物分析杂志》
CAS
CSCD
北大核心
2007年第1期129-131,共3页
Chinese Journal of Pharmaceutical Analysis
基金
四川省教育厅青年基金(2006B035)
关键词
枇杷花
齐墩果酸
熊果酸
反相高效液相色谱法
flowers of Eriobotrya japonica ( Thunb. ) Lindl.
oleanolic acid
ursolic acid
RP - HPLC