| Description | Enzyme immunoassay (ELISA) for the determination of Tryptophan in urine, serum, and plasma. For research use only, not for use in diagnostic procedures._x000D_ | Radioimmunoassay (RIA) for the determination of human 17ß-Estradiol (E2) in serum. FDA registered 510(k) Exempt. For In-Vitro Diagnostic Use. | Immunometric assay (ELISA) for the determination of insulin Glargine in physiological plasma samples. For research use only, not for use in diagnostic procedures. | Radioimmunoassay (RIA) for the determination of glucagon in human plasma. FDA exempt, can be used for in-vitro diagnostics. | Solid phase sandwich ELISA for the determination of human Osteopontin (Human OPN) in plasma (EDTA), urine, or cell culture media. For research use only, not for use in diagnostic procedures. |