A HPLC method for determination of potassium sodium 14-deoxy-11,12-didehydroandrographolidesuccinate was established. A C18 column was used with the mobile phase of 0.04mol/L KH2PO4-methanol(3∶7) at thedetection wavelength of 250nm. The calibration curve was linear in the range of 0.005 - 2mg/ml and the detection limit was4.4ng. The average recovery was 99.8%, with RSD of 0.64%,
目的:对多种中药的活性成分进行提取并筛选出新的有效治疗阴道炎的组方。方法:参考中医验方,通过平板稀释法和K-B纸片法测定不同pH条件下中药提取物对大肠杆菌、金黄色葡萄球菌、绿脓杆菌和白色念球菌的抑菌效果。选择苦参、蛇床子、川椒和黄柏的提取物为组方成分,并通过正交实验确定各组分的最佳比例。建立小鼠、大鼠阴道炎模型,通过在体实验观察组方的抑菌效果。结果:中药组分的比例不同,其抑菌效果也不同。在pH 6的条件下,1 m l药液中含100μl蛇床子-川椒(2∶1)共提挥发油,苦参和黄柏醇提物各50μl时组方的抑菌效果最好。结论:该复方组分少,疗效佳,且适应于阴道炎患者阴道内的pH值范围,有望成为治疗阴道炎的有效药物。
