Used in biomedical research to measure secretin levels in biological samples such as plasma, serum, or tissue extracts. This ELISA kit enables researchers to quantitatively detect secretin, a hormone involved in regulating pancreatic bicarbonate secretion and gastrointestinal motility. It is widely applied in studies related to digestive physiology, gut-brain axis signaling, and disorders of the pancreas or gastrointestinal tract. The assay supports investigation into hormonal responses to nutrients, gastric acid regulation, and potential roles of secretin in autism spectrum disorders and other neurogastroenterological conditions. High sensitivity and specificity make it suitable for both clinical research and experimental models.