| Description | Enzyme linked immunosorbent assay (ELISA) for the determination antibodies directed against human spermatozoa in seminal plasma. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of Human Big ET-1 in serum, EDTA-plasma, supernatant of cell culture media and extract from tissue. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination human FGF21 in serum, EDTA plasma and cell culture supernatant. For research use only, not for use in diagnostic procedures. | Enzyme immunoassay (ELISA) for the determination of NSE (Neuron-Specific Enolase) in human serum. For research use only, not for use in diagnostic procedures. | Radioimmunoassay (RIA) for the determination of Free Testosterone in human serum. For research use only, not for use in diagnostic procedures. |