RESULTS The average recoveries and ralative standard deviations were 99 7%?0 85% for sulfamethoxazole, and were 100 37%?0 74% for trimethoprim.

• 方法采用差示分光光度法测定复方甲口恶唑片中磺胺甲口恶唑及甲氧口苄啶的含量。