Used to measure levels of immunoglobulin E (IgE) in rat biological samples such as serum or plasma. This kit is commonly applied in allergy and asthma research, helping scientists evaluate immune responses involving mast cells and basophils. It is also used in studies assessing the effectiveness of anti-allergic drugs or immunotherapies in rat models. The assay enables quantitative analysis, supporting reproducible and sensitive detection of IgE concentrations in experimental settings.