Direct measurement of aspirin.
D000085:Acetates; D001241:Aspirin / Q000032:analysis*; D002563:Cerium; D002623:Chemistry Techniques, Analytical; D002712:Chlorides; D005030:Ethylenes; D005470:Fluorometry; D009566:Nitrates; D000644:Quaternary Ammonium Compounds; D014867:Water
D000085:Acetates; D002712:Chlorides; D005030:Ethylenes; D009566:Nitrates; D000644:Quaternary Ammonium Compounds; D014867:Water; D002563:Cerium; D001241:Aspirin