The mean weight of finely powdered Malophenum
tablet containing 250 mg of acetylsalicylic acid and
paracetamol, 50 mg of caffeine and 20 mg of phenobarbital
was accurately transferred into 100 ml calibrated
flask and 80 ml of mobile phase was added; the mixture
was extracted in the ultrasonic bath for 10 min at room
temperature and diluted with mobile phase to the mark.
The supernatant liquid was filtered through Anotop 25,
0.02 mm filter. One millilitre of this solution was
transferred to the 10 ml calibrated flask and diluted
with mobile phase to the mark.
3. Results