Used in biomedical research to quantify rat angiotensin III levels in biological samples such as plasma, serum, or tissue homogenates. This ELISA kit enables researchers to study the renin-angiotensin system (RAS) activity in rat models, particularly in cardiovascular, renal, and endocrine studies. It is commonly applied in hypertension research, heart failure models, and investigations into fluid and electrolyte balance. The assay provides high sensitivity and specificity, allowing accurate measurement of angiotensin III concentration to assess peptide dynamics and the effects of pharmacological interventions.