| Description | Immunoradiometric assay (RIA) for the determination of human prolactin (PRL) in serum and plasma. FDA exempt, can be used for in-vitro diagnostics. | Solid phase sandwich ELISA for the determination each of human, rat and mouse a 2,6-sialyltransferase in serum, EDTA plasma and cell culture supernatant. For research use only, not for use in diagnostic procedures. | Solid phase sandwich ELISA for the determination of human Endothelial Lipase (EL) in serum, EDTA-plasma and cell culture supernatant. For research use only, not for use in diagnostic procedures. | Enzyme immunoassay (ELISA) for the determination of free active testosterone in saliva. For research use only, not for use in diagnostic procedures. | Enzyme immunoassay (ELISA) for the determination of Tryptophan in urine, serum, and plasma. For research use only, not for use in diagnostic procedures._x000D_ |