METHODS:Aminopyrine and antipyrine in Antongding injection were determined by radial basis fuction neural network UV spectrophotometry,barbitial was determined with absorbance substraction technique.

• 方法：采用径向基函数紫外分光光度法同时测定安痛定注射液中的氨基比林和安替比林，并结合吸光度减技术测定巴比妥。