| Description | 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. | Enzyme immunoassay (ELISA) for the quantitative in vitro diagnostic measurement of free estriol (unconjugated estriol) in serum during the second half of pregnancy. | Solid phase enzyme immunoassay (ELISA) for the determination of FSH in human serum. For research use only, not for use in diagnostic procedures. | Solid phase competitive enzyme immunoassay (ELISA) for the determination of free Thyroxine (fT4) in human serum. For research use only, not for use in diagnostic procedures. | Radioimmunoassay (RIA) for the determination of human 1,25(OH)2-Vitamin D (1,25(OH)2-Vit.D) in serum and plasma. For research use only, not for use in diagnostic procedures. |