title: The effect of the chemical character of certain penicillins on the resistance of the beta-lactam group in their molecules. Part 4: Effect of ionic strength.
mesh_terms: D000900:Anti-Bacterial Agents / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D010406:Penicillins / Q000032:analysis*; D047090:beta-Lactams
chemical_list: D000900:Anti-Bacterial Agents; D010406:Penicillins; D047090:beta-Lactams