title: A note on detergent interference in the serial dilution assay of penicillin using Bacillus subtilis.
mesh_terms: D001412:Bacillus subtilis; D001681:Biological Assay; D003902:Detergents; D010406:Penicillins; D012015:Reference Standards
chemical_list: D003902:Detergents; D010406:Penicillins
keywords: PENICILLIN/standardization