Used in biomedical research to detect and quantify calprotectin (S100A8/S100A9) in human biological samples such as serum, plasma, and cell culture supernatants. This ELISA kit is commonly applied in studies related to inflammation, autoimmune diseases (like rheumatoid arthritis and inflammatory bowel disease), and cancer. It enables researchers to monitor disease activity, assess response to treatment, and investigate the role of calprotectin as a biomarker in various pathological conditions. The assay provides high specificity and sensitivity, making it suitable for clinical and experimental settings where accurate measurement of calprotectin levels is required.