title: Spectropolarimetric and circular dichroism methods for determining the activity of penicillin.
mesh_terms: D000667:Ampicillin / Q000032:analysis; D002942:Circular Dichroism; D003023:Cloxacillin / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D006877:Hydroxamic Acids / Q000032:analysis; D007455:Iodine / Q000032:analysis; D008722:Methods; D009904:Optical Rotation; D009905:Optical Rotatory Dispersion; D010405:Penicillinase; D010406:Penicillins / Q000032:analysis*; D013057:Spectrum Analysis; D014466:Ultraviolet Rays
chemical_list: D006877:Hydroxamic Acids; D010406:Penicillins; D000667:Ampicillin; D007455:Iodine; D010405:Penicillinase; D003023:Cloxacillin