Anti-kappa/lambda immunobead for detection of human B lymphocytes.

Several methods were compared for quantitating the B lymphocytes in human peripheral blood. RBC rosette assays including sheep and bovine red blood cells, and immunobead rosette assays including beads coated with anti-kappalambda and trivalent anti-GAM antibodies respectively were investigated. The anti-kappalambda bead assay proved to be simpler, faster, higher in reproducibility, and appeared to be more accurate than any of the other assays.