| Description | 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. | Radioimmunoassay (RIA) for the determination of human 17ß-Estradiol (E2) in serum. FDA registered 510(k) Exempt. For In-Vitro Diagnostic Use. | Radioimmunoassay (RIA) for the determination of human IGFBP-3 in serum, plasma, or other human biological fluids (e.g. follicular fluid, seminal plasma). For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human total sAPP in serum, EDTA plasma, cerebrospinal fluid and cell culture supernatant as a total amount. 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. |