Simultaneous determineting contents of two constituents in Xieliting Tablets by convolution curve method

Key words: 
• convolution curve method /
• Xieliting Tablets /
• sulfamethoxazol /
• ttrimethoprim

Abstract: Objective : To establish a method for determination of contents in Xieliting tablets. Methods : The computer-aided con-juction curve method had been applied to determine sulfamethoxazol and trimethoprim. Results : The corresponding average recovery and the relative standard deviation of sulfamethoxazol and trimethoprim were 99.85% ,0.53% , 102.01% ,3.14% ,the linear range of sultamethoxazol and trimethoprim were 0-20μg/mL,0-12μg/mL. Conclusions : The method was satisfactory, simple and convenient and had a good accuracy.