A Specific Radioimmunoassay for the Detection of 19-Nortestosterone Residues in Urine and Plasma of Cattle

Publisher Website
Google Scholar
Abstract
19-Nortestosterone (NANDROLONE) is illegal/ used as a growth promoter for meat producing animals. This work describes a radio-immunoassay (RIA) to detect, in cattle urine, NANDROLONE and its metabol ites. The antiserum was specific for 19-nortestosterone and its main metabolites, and to a lesser extent for TRENBOLONE (17B-hydroxyestra-4,9,11-trien-3-one). The sensitivity of this assay was ó ug/1 at 90 % BO/T binding. This assay can be used in forensic control of illegal treatment with 19-nortestosterone in meat production.