title: Automated analysis of sulfamethazine and procaine penicillin in feed premixes.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D001322:Autoanalysis; D003124:Colorimetry; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008722:Methods; D010402:Penicillin G Procaine / Q000032:analysis*; D012997:Solvents; D013418:Sulfamethazine / Q000032:analysis*
chemical_list: D007202:Indicators and Reagents; D012997:Solvents; D010402:Penicillin G Procaine; D013418:Sulfamethazine