title: A spectrophotometric method for the analysis of pepsin.
mesh_terms: D005750:Gastric Juice / Q000032:analysis*; D006801:Humans; D008722:Methods; D009596:Nitrophenols; D010434:Pepsin A / Q000032:analysis*; D013053:Spectrophotometry; D013447:Sulfites
chemical_list: D009596:Nitrophenols; D013447:Sulfites; D010434:Pepsin A