Used in immunological research to quantify interleukin-12A levels in biological samples such as serum, plasma, or cell culture supernatants. Enables researchers to study immune responses, particularly Th1 cell activation and inflammation pathways. Commonly applied in studies related to autoimmune diseases, infectious diseases, and cancer immunotherapy to monitor cytokine expression and evaluate treatment efficacy. Provides a sensitive and specific method for detecting IL-12A protein, supporting data accuracy in experimental models and preclinical research.