[关键词]
[摘要]
目的 建立高效液相色谱(HPLC)法同时测定银花平感颗粒中新绿原酸、绿原酸、隐绿原酸、葛根素、 虎杖苷、异绿原酸A、异绿原酸C、白藜芦醇、甘草酸和大黄素10 种成分含量的方法。方法 采用Thermo Acclaim-C18 色谱柱(250 mm × 4.6 mm,5 μm),以乙腈-0.1% 磷酸水溶液为流动相进行梯度洗脱,流速: 1.0 mL·min-1,采用327 nm(新绿原酸、绿原酸、隐绿原酸、虎杖苷、异绿原酸A、异绿原酸C、白藜芦醇)和 252 nm(葛根素、甘草酸、大黄素)作为检测波长,柱温:30 ℃,进样量:10 μL。结果 银花平感颗粒中10 种 成分分离度良好,新绿原酸、绿原酸、隐绿原酸、葛根素、虎杖苷、异绿原酸A、异绿原酸C、白藜芦醇、甘 草酸和大黄素的线性范围分别为1.744~17.44、10.75~107.5、1.863~18.63、14.62~146.2、4.784~47.84、 1.208~12.08、4.427~44.27、1.971~19.71、3.624~36.24 和4.142~41.42 μg·mL-1,线性关系良好(r ≥ 0.999 4); 平均加样回收率在99.17%~102.97% 之间(RSD ≤ 2.65%)。5 批样品中上述10 个成分含量范围依次分别为 1.065~3.238、20.11~25.14、1.785~2.973、23.60~35.55、7.157~9.469、1.224~2.421、6.430~7.879、1.354~ 2.006、4.907~8.052、4.387~9.484 mg·g-1。结论 所建立的方法简单准确,可用于银花平感颗粒的质量控制 与评价。
[Key word]
[Abstract]
Abstract: Objective To establish a HPLC method for simultaneous determination of neochlorogenic acid, chlorogenic acid, cryptochlorogenic acid, puerarin, polydatin, isochlorogenic acid A, isochlorogenic acid C, resveratrol, glycyrrhizic acid and emodin in Yinhua Pinggan Granules. Methods The analysis was performed on Thermo Acclaim-C18 column (250 mm×4.6 mm,5 μm) by gradient elution of acetonitrile -0.1% phosphoric acid solution at a flow rate of 1.0 mL·min-1. The detection wavelength was set at 327 nm for detecting neochlorogenic acid, chlorogenic acid,cryptochlorogenic acid,polydatin,isochlorogenic acid A,isochlorogenic acid C and resveratrol, at 252 nm for detecting puerarin,glycyrrhizic acid and emodin. The column temperature was 30 ℃ and the injection volume was 10 μL. Results Good resolution of 10 constituents of Yinhua Pinggan Granules was obtained. The linear ranges of neochlorogenic acid,chlorogenic acid,cryptochlorogenic acid,puerarin,polydatin,isochlorogenic acid A, isochlorogenic acid C, resveratrol, glycyrrhizic acid and emodin were 1.744-17.44, 10.75-107.5, 1.863- 18.63,14.62-146.2,4.784-47.84,1.208-12.08,4.427-44.27,1.971-19.71,3.624-36.24 and 4.142-41.42 μg·mL-1, respectively. The results showed good linear relationships (r ≥ 0.999 4). The average recoveries ranged from 99.17% to 102.97%(RSD ≤ 2.65%). The content ranges of ten constituents in five batches were 1.065-3.238,20.11-25.14, 1.785-2.973, 23.60-35.55, 7.157-9.469, 1.224-2.421, 6.430-7.879, 1.354-2.006, 4.907-8.052, 4.387- 9.484 mg·g-1, respectively. Conclusion This method is simple and accurate, which can be used for the quality control and evaluation of Yinhua Pinggan Granules.
[中图分类号]
R284.1
[基金项目]
湖南省自然科学基金科药联合项目(2021JJ80023,2021JJ80074)。