Used in biomedical research to measure endothelin levels in sheep samples, aiding studies on cardiovascular function, vascular diseases, and endothelial health. Commonly applied in veterinary research, pharmacology, and physiology to assess endothelin-1 concentration in plasma or serum, supporting investigations into hypertension, heart failure, and pulmonary disorders in ovine models. Enables high-throughput, accurate quantification essential for experimental data analysis.