Study on the improving the quality standard of Shuqing Granules
CHE Hongwei YANG Haining WANG Dengcai ZHENG Wensheng
Beijing Key Laboratory of Drug Delivery Technology and Novel Formulation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
Abstract:Objective To improve the quality standard of Shuqing Granules. Methods The qualitative identification experiments of Folium Isatidis, Glycyrrhizae Radix et Rhizoma, Mori Folltfm and Phragmitis Rhizoma were carried out by thin-layer chromatography. The content of indirubin and glycyrrhizin were detected by reverse high performance liquid chromatography useing Diamonsil (diamond) C18 (250 mm×4.6 mm, 5 μm) as chromatographic column. The content of indirubin was detected with the mobile phase being methanol-acetonitrile-0.4% phosphoric acid solution (33.5∶33.5∶33), column temperature being at 35℃, detection wavelength being at 238 nm. The content of glycyrrhizin was detected with mobile phase being methanol-glacial acetic acid-0.2 mol/L ammonium acetate solution (67∶1∶33), column temperature being at 35℃, detection wavelength being at 238 nm. Results Thin-layer chromatogram of Folium Isatidis, Glycyrrhizae Radix et Rhizoma, Mori Folltfm and Phragmitis Rhizoma were clear spots with suitable resolution and proper Rf value, no interference with negative control. The regression equation of indirubin and glycyrrhizin were y = 1471.2799x - 52.6798 (r = 0.9992) and y = 356 584x - 2427.7 (r = 0.9995), respectively. The linear range of indirubin and glycyrrhizin ranged from 0.057-0.46 μg/mL and 0.2-1.4 mg/mL respectively, and showed a good linear relationship. The average recovery rate of indirubin and glycyrrhizin were 99.43% and 100.00%, RSD were 0.81% and 0.65% (n = 6). Conclusion All the experimental methods are simple and reproducible, and can be used for the quality control of Shuqing Granules.
车宏伟 杨海宁 王登才 郑稳生. 疏清颗粒质量标准提高研究[J]. 中国医药导报, 2018, 15(31): 34-37,52.
CHE Hongwei YANG Haining WANG Dengcai ZHENG Wensheng. Study on the improving the quality standard of Shuqing Granules. 中国医药导报, 2018, 15(31): 34-37,52.