Used in biomedical research to measure levels of antithrombin-III in rat plasma or serum samples. Helps in studying coagulation disorders, liver function, and thrombosis-related mechanisms in experimental models. Commonly applied in preclinical studies evaluating anticoagulant therapies or inflammatory conditions where coagulation pathways are involved. Provides a reliable and sensitive method for quantifying AT-III concentration, supporting research in hemostasis and vascular biology.