title: Studies on the quality of commercially available semi-alkaline proteinase preparations using high-performance liquid chromatography.
mesh_terms: D001230:Aspergillus / Q000201:enzymology*; D002851:Chromatography, High Pressure Liquid; D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D010447:Peptide Hydrolases / Q000032:analysis*
chemical_list: D010447:Peptide Hydrolases