Used in research settings to measure levels of Carnitine Palmitoyl Transferase I (CPT-I) in rat tissue samples, particularly from liver or muscle. This kit enables scientists to study fatty acid metabolism and mitochondrial function in experimental models. It is commonly applied in studies related to metabolic disorders, diabetes, obesity, and insulin resistance. By quantifying CPT-I concentration, researchers can assess how different treatments, diets, or genetic modifications affect metabolic pathways in rats. The assay is not for diagnostic use but supports preclinical investigation into energy metabolism and liver health.