Used in research settings to quantify rat apolipoprotein H (Apo-H) levels in biological samples such as serum, plasma, or cell culture supernatants. This ELISA kit enables the detection and measurement of Apo-H, a protein involved in lipid metabolism and associated with antiphospholipid syndrome and cardiovascular diseases. It is commonly applied in studies related to thrombosis, autoimmune disorders, and metabolic conditions in rat models. The kit provides a reliable and sensitive method for monitoring changes in Apo-H expression under experimental treatments, supporting preclinical research and biomarker validation.