Determination of salicylic acid and aspirin in multicomponent tablets by liquid chromatography on a nonionic resin.
Aspirin and free salicylic acid were determined in combinations containing caffeine, phenacetin, salicylamide, and acetaminophen by liquid chromatography on poly(methyl methacrylate) resin. Precision and accuracy were +/- 2% for salicylic acid, the latter at levels corresponding to 0.02% of the aspirin content.
D001241:Aspirin / Q000032:analysis*; D002853:Chromatography, Liquid; D004338:Drug Combinations; D008722:Methods; D012459:Salicylates / Q000032:analysis*; D013607:Tablets / Q000032:analysis
D004338:Drug Combinations; D012459:Salicylates; D013607:Tablets; D001241:Aspirin