Used to measure the activity of human chymotrypsin in biological samples such as serum, plasma, or cell culture supernatants. This kit is commonly applied in clinical research and diagnostic laboratories to study pancreatic function and related disorders, including pancreatitis and cystic fibrosis. It enables quantitative detection of chymotrypsin levels, helping assess exocrine pancreatic health and monitor disease progression or treatment response. The assay is also useful in research settings investigating digestive enzyme regulation and gastrointestinal diseases.