title: Assay of quaternary ammonium compounds in various dosage forms by acid-dye method.
mesh_terms: D002594:Cetylpyridinium / Q000032:analysis; D003124:Colorimetry; D004396:Coloring Agents; D006863:Hydrogen-Ion Concentration; D007267:Injections; D008722:Methods; D009883:Ophthalmic Solutions / Q000032:analysis; D010425:Pentolinium Tartrate / Q000032:analysis; D011413:Propantheline / Q000032:analysis; D000644:Quaternary Ammonium Compounds / Q000032:analysis*; D012996:Solutions; D012997:Solvents; D013607:Tablets
chemical_list: D004396:Coloring Agents; D009883:Ophthalmic Solutions; D000644:Quaternary Ammonium Compounds; D012996:Solutions; D012997:Solvents; D013607:Tablets; D011413:Propantheline; D010425:Pentolinium Tartrate; D002594:Cetylpyridinium