experiments with monoclonal antibodies labeled to an average incorporation ratio of 2.8 mol of acridinium ester per mole of antibody suggest that assay sensitivity increases with increased specific activity . alpha 1-fetoprotein concentrations in the sera of pregnant women at 14-20 weeks of gestation , as measured by the present assay , agreed with the results of a conventional radioimmunoassay .
C0003250
monoclonal antibodies
C0003241
antibody