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HPLC法同时测定星夏止痛贴膏中3种双酯型生物碱含量
Simultaneous Determination of 3 Diester Diterpenoid Alkaloids in Xingxia Zhitong Plaster by High Performance Liquid Chromatography
【摘要】 目的:建立星夏止痛贴膏中生川乌、生草乌所含双酯型生物碱成分含量的HPLC同时测定方法。方法:采用Phenomenex Luna Omega PS C18(4.6 mm×250 mm, 5μm)色谱柱分离,乙腈-四氢呋喃(25∶15)-0.1 moL/L醋酸铵为流动相梯度洗脱,检测波长:235 nm;柱温:25℃;流速:1.0 mL/min,外标法定量。结果:3种双酯型生物碱成分分离度良好,分别在14.151~113.207μg/mL、13.392~107.136μg/mL、14.196~113.564μg/mL浓度范围内与峰面积呈良好的线性关系,平均回收率分别为94.03%、97.92%、94.45%,RSD分别为5.51%、7.09%、6.94%。结论:该方法简便、快速、准确,可同时对星夏止痛贴膏中的乌头碱、次乌头碱、新乌头碱3双酯型生物碱进行分析,能有效地消除杂质干扰,为星夏止痛贴膏的质量评价提供实验依据。
【Abstract】 Objective A high performance liquid chromatography(HPLC)was established for the simultaneous determination of 3 diester diterpenoid alkaloids, i.e. mesaconitine, aconitine and hypaconitine in Xingxia Zhitong plaster. Methods The 3 alkaloids were separated on Phenomenex Luna Omega PS C18(4.6 mm×250 mm, 5 μm)column with acetonitrile-tetrahydrofuran(25∶15)-ammonium acetate as the mobile phase by gradient elution at a flow rate of 1.0 mL·min-1. The detective wavelength was235 nm, the column temperature was 25 ℃,and finally quantified by external standard calibration method.Results The 3 alkaloids showed a good linearity relationship between 14.151-113.207 μg/mL、13.392-107.136 μg/mL、14.196-113.564 μg/mL,and the average recoveries were 94.03%(RSD=5.51%)、97.92%(RSD=7.09%)、94.45%(RSD=6.94%), respectively.Conclusion The method is rapid, simple and accurate, it can simultaneously analyze the contents of 3 alkaloids in Xingxia Zhitong plaster and eliminate the impurity interference effectively. This method and test data also provided reference for the quality evaluation of Xingxia Zhitong plaster.
【Key words】 Xingxia Zhitong Plaster; Diester Diterpenoid Alkaloids; High Performance Liquid Chromatography;
- 【文献出处】 中国民族民间医药 ,Chinese Journal of Ethnomedicine and Ethnopharmacy , 编辑部邮箱 ,2024年24期
- 【分类号】R286.0;O657.72
- 【下载频次】27