Used to quantitatively measure mouse immunoglobulin A (IgA) levels in biological samples such as serum, plasma, or mucosal secretions. Commonly applied in immunology research to study immune responses, particularly in mucosal immunity, gut health, and infectious disease models. Helps assess B-cell function and antibody production in mouse models of inflammation, autoimmunity, and vaccine development. Provides a reliable, sensitive, and specific method for detecting IgA concentration in experimental settings.