Used in research settings to quantify vitronectin levels in biological samples such as plasma, serum, and cell culture supernatants. Enables study of cell adhesion, migration, and extracellular matrix interactions. Supports investigation of diseases involving abnormal coagulation, inflammation, and tissue remodeling, including cardiovascular disorders and fibrosis. Facilitates biomarker validation and drug development by providing a reliable method to measure vitronectin concentration in experimental models.