title: Purification of beta-lactamases on QAE-sephadex.
mesh_terms: D002511:Cephalosporins; D002850:Chromatography, Gel; D002852:Chromatography, Ion Exchange; D004355:Drug Stability; D004589:Electrophoresis, Disc; D004755:Enterobacteriaceae / Q000201:enzymology*; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D007709:Klebsiella / Q000201:enzymology*; D008970:Molecular Weight; D010405:Penicillinase / Q000302:isolation & purification*; D010406:Penicillins; D013329:Structure-Activity Relationship
chemical_list: D002511:Cephalosporins; D010406:Penicillins; D010405:Penicillinase