The use of cation exchangers for the concentration and purification of antibiotics of basic nature.
D000900:Anti-Bacterial Agents / Q000302:isolation & purification*; D000904:Antibiotics, Antitubercular; D002412:Cations
D000900:Anti-Bacterial Agents; D000904:Antibiotics, Antitubercular; D002412:Cations
ANTIBIOTIC/purification; CATION/exchanger, use for concentration of antibiotics