| Description | Solid phase direct sandwich ELISA for the determination of Lysozyme in human plasma, serum, or stool. FDA exempt, can be used for in-vitro diagnostics. | Immunoradiometric assay (RIA) for the quantitative determination of human Insulin (INS) in serum. FDA exempt, can be used for in-vitro diagnostics. | Solid phase sandwich ELISA for the determination of Human Leptin in serum, EDTA-plasma and supernatant of cell culture media. 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_ | Radioimmunoassay (RIA) for the determination of Vasoactive Intestinal Polypeptide (VIP) in human plasma. For research use only, not for use in diagnostic procedures. |