APPLICATION OF CONVOLUTION CURVE METHOD FOR SIMULTANEOUS DETERMINATION OF THREE COMPONENTS IN COMPOUND AMIDOPYRINE INJECTIQN

The convolution curve combined with PLS method was applied to the determina-tion of amidopyrine ,phenazone and barbital in compound amidopyrine injection without priorseparation.The corresponding average recovery and the RSD were as follows :99.84%and 0.15%for amidopyrine;99.87%and 0.21%for phenazone and 100.27%and 0.39%for barbital.