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摘 要 DETERMINATION OF ANDROGRAPHOLIDE IN XIAOYAN LIDAN PIAN BY HPLC Zhao Qinghua,Wang Hailong,Liu Xin,Feng Jijun Abstract AIM To determine the andrographolide
in Xiaoyan Lidan pian.METHODS The HPLC method was used and the
chromatography consisted of Shim-pack CLS-ODS column.the mobile
phase was CH3OH-H2O(50∶50).The
determination wavelength was 225nm.RESULTS Good linearity was obtained in the range of 2.02~10.10μg,the recovery
could reach 100.30% and RSD=0.73%.CONCLUSION The method was proved to be simple,accurate and reproducible.It
could determine the andrographolide in Xiaoyan Lidan pian. 消炎利胆片系由穿心莲、溪黄草、苦木等药材组成的复方制剂,具有消炎及利胆功效。部颁标准[1]对其总内酯规定了含量限度,其主要成分穿心莲内酯的含量未单独测定。文献报道消炎利胆片中穿心莲内酯的测定方法有薄层色谱扫描法[2]、HPLC法[3]。为进一步完善其质量控制标准,我们建立了高效液相法测定消炎利胆片中穿心莲内酯的方法。此法操作简便快速,准确,现报道如下: 1 仪器与试剂 2 方法与结果 图1 色谱分离图 2.2 对照品溶液的制备 精密称取于105℃干燥至恒重的穿心莲内酯对照品适量,加无水乙醇制成每1ml含1.01mg的对照品溶液。 表1 回收率试验结果(n=6) |
投入量 | 测得量 | 回收率 | 平均回收率 | RSD |
5.05 | 5.04 | 99.80 |
|
|
5.05 | 5.06 | 100.20 |
|
|
5.05 | 5.03 | 99.60 | 100.30 | 0.73 |
5.05 | 5.10 | 100.99 |
|
|
5.05 | 5.12 | 101.39 |
|
|
5.05 | 5.04 | 99.80 |
|
|
2.7 重复性试验 取同一批号消炎利胆片,照样品测定方法测定5次,求得RSD=1.23%。 表2 样品测定结果(n=3) |
批 号 | 每片穿心莲内酯含量(mg) | RSD值(%) |
981003 | 0.98 | 0.94 |
981105 | 1.15 | 1.21 |
981108 | 1.27 | 1.30 |
3 讨 论 作者简介:赵庆华,女,主管药师。 作者单位:中国人民解放军济南军区联勤部药品检验所 济南 250022 参考文献: (本文编辑 王绪明) 收稿日期:1999-11-12 |