Isolation of antibiotics of countercurrent distribution.
D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D001681:Biological Assay; D003377:Countercurrent Distribution / Q000295:instrumentation / Q000379:methods; D005069:Evaluation Studies as Topic; D008970:Molecular Weight; D010400:Penicillin G / Q000302:isolation & purification / Q000494:pharmacology; D013210:Staphylococcus / Q000187:drug effects
D000900:Anti-Bacterial Agents; D010400:Penicillin G