目的建立人参皂苷Re蛋清蛋白纳米混悬剂中药物含量的测定方法。方法采用Diamonsil C18色谱柱(250mm×4.6mm,5μm),流动相为乙腈-体积分数为0.05%磷酸水溶液(体积比25:75),流速1.0mL·min^-1,紫外检测波长203nm,柱温25℃。结果在本实验条件下,制剂中辅料对药物含量的测定无干扰,人参皂苷Re质量浓度在44.40~177.6mg·L^-1内线性关系良好(r=0.9999,n=5),药物平均加样回收率为100.1%,RSD为0.84%(n=9)。结论此方法准确可靠、简便易行、重现性好,可用于人参皂苷Re蛋清蛋白纳米混悬剂中药物含量的测定。
Objective To establish an HPLC method for the content determination of ginsenoside Re in egg albumen nanosuspensions. Methods The separation was performed with a Diamonsil C18 colunm(250 mm× 4.6 mm,5 μm) at 25 ℃ ,and the mobile phase was acetonitrile -0. 05% phosphoric acid( V: V =25:75), the flow rate was 1.0 mL- min - 1 and detective wavelength was set at 203 nrn. Results The linear range of ginsenoside Re was 44.40- 177.6 mg.L^-1 ( r = 0.999 9, n = 5 ). The average recovery of ginsenoside Re was 100. 1% ,and RSD was 0. 84% (n =9). Conclusions The method is simple,accurate and reproducible, and it can be used for determination of ginsenoside Re in egg albumen nanosuspensions.