| Description | Enzyme immunoassay (ELISA) for the direct quantitative determination of Estrone in human serum. FDA exempt, can be used for in-vitro diagnostics. | Enzyme immunoassay (ELISA) test kit for the determination of free antibodies directed against the drug Bevacizumab (Avastin®) in serum and plasma. For research use only, not for use in diagnostic procedures. | Solid phase sandwich enzyme-linked immunosorbent assay (ELISA) for the determination of Endothelin-1 in serum, EDTA-plasma, tissue extracted, and cell culture supernatant. For research use only, not for use in diagnostic procedures. | 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. | Radioimmunoassay (RIA) for the determination of 25-hydroxyvitamin D3 and D2 (25-OH-D3 and 25-OH-D2) in serum. For research use only, not for use in diagnostic procedures. |