title: Colometric methods for the estimation of tetracycline hydrochloride and oxytetracycline hydrochloride.
mesh_terms: D001729:Bismuth; D003124:Colorimetry; D007454:Iodides; D008722:Methods; D009573:Nitrites; D010118:Oxytetracycline / Q000032:analysis*; D013678:Technology, Pharmaceutical; D013752:Tetracycline / Q000032:analysis*; D013861:Thiocyanates
chemical_list: D007454:Iodides; D009573:Nitrites; D013861:Thiocyanates; D013752:Tetracycline; D001729:Bismuth; D010118:Oxytetracycline