Used in clinical and research laboratories to measure the concentration of Vitamin D Binding Protein (DBP) in human biological samples such as serum or plasma. This assay helps assess vitamin D status and metabolism, which is important in studying conditions related to bone health, immune function, and chronic diseases like osteoporosis, autoimmune disorders, and kidney disease. The kit enables high-throughput, accurate quantification using a 96-well plate format, making it suitable for epidemiological studies and diagnostic applications. It is also used in monitoring patients with vitamin D deficiency or those undergoing supplementation therapy.