Determination of salicylic acid in aspirin powder by second derivative ultraviolet spectrometry.
D001241:Aspirin / Q000032:analysis* / Q000592:standards; D012459:Salicylates / Q000032:analysis*; D020156:Salicylic Acid; D013056:Spectrophotometry, Ultraviolet / Q000379:methods
D012459:Salicylates; D020156:Salicylic Acid; D001241:Aspirin