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.
D000628:Aminophylline / Q000032:analysis*; D000654:Amobarbital / Q000032:analysis*; D002214:Capsules / Q000032:analysis; D004338:Drug Combinations; D004809:Ephedrine / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D008722:Methods; D013056:Spectrophotometry, Ultraviolet
D002214:Capsules; D004338:Drug Combinations; D000628:Aminophylline; D004809:Ephedrine; D000654:Amobarbital