| Description | Solid phase competitive enzyme immunoassay (ELISA) for the determination of total T4 (Thyroxine) in human serum or plasma. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human Aß(1-40) in EDTA-plasma, cerebrospinal fluids, serum, cell culture media or the extract from brain tissue. 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. | Enzyme immunoassay (ELISA) for the determination of IGFBP-3 in human serum, plasma (heparin), or cerebrospinal fluid. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination human sAPP_x0001_-sw in EDTA plasma of the Tg2576 transgenic mouse and cell culture supernatant. For research use only, not for use in diagnostic procedures. |