| Description | Radioimmunoassay (RIA) for the determination of human Testosterone in serum. For research use only, not for use in diagnostic procedures. | Enzyme immunoassay (ELISA) test kit for the determination of free antibodies directed against the drug Cetuximab (Erbitux®) in serum and plasma. For research use only, not for use in diagnostic procedures. | Enzyme immunoassay (ELISA) for the quantitative determination of Intact-PTH (Parathyroid Hormone) in human serum. This assay is intended for in vitro diagnostic use. | Enzyme immunoassay (ELISA) for the determination of Sex-Hormone-Binding Globulin (SHBG) in serum and heparin plasma. 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_ |