Used in biomedical research to measure levels of mouse thyroxine (T3) hormone in serum or plasma samples. Enables accurate assessment of thyroid function in mouse models, supporting studies on endocrine disorders, metabolic regulation, and thyroid-related disease mechanisms. Widely applied in preclinical research, pharmaceutical testing, and hormone metabolism studies. Provides a reliable, sensitive, and high-throughput method for quantifying T3 in experimental settings.