UV spectrophotometric determination of aminophylline, amobarbital, and ephedrine hydrochloride in an antiasthma capsule preparation.
A simple and rapid procedure for the determination of aminophylline, amobarbital, and ephedrine hydrochloride in a capsule preparation is described. Aminophylline and amobarbital are determined simultaneously using differential UV spectrophotometry; ephedrine hydrochloride is determined separately after elution from an alginic acid column with 0.1 N hydrochloric acid.
UV spectrophotometric determination of aminophylline, amobarbital, and ephedrine hydrochloride in an antiasthma capsule preparation. A simple and rapid procedure for the determination of aminophylline, amobarbital, and ephedrine hydrochloride in a capsule preparation is described. Aminophylline and amobarbital are determined simultaneously using differential UV spectrophotometry; ephedrine hydrochloride is determined separately after elution from an alginic acid column with 0.1 N hydrochloric acid.