Used in immunological research to quantitatively measure thymosin α1 levels in biological samples such as serum, plasma, or cell culture supernatants. Enables assessment of immune function and T-cell regulation in studies related to autoimmune diseases, viral infections, cancer immunotherapy, and aging. Supports biomarker validation and therapeutic monitoring in preclinical and clinical research settings. Provides high sensitivity and specificity for accurate detection of low-concentration thymosin α1, aiding in understanding its role in immune modulation and inflammation.