The aim of this study is to develop a universal phosphorescence immuno
assay method using monoclonal antibodies to Pd-coproporphyrin (Pd-CP)
and conjugates of various proteins with Pd-CP. Pd-CP and monoclonal an
tibodies obtained allow a convenient method for the determination of v
arious antigens to be developed. The conditions for immunological reac
tions with Pd-CP were optimized with respect to the components affecti
ng the nonspecific binding Pd-CP and Pd-CP conjugates. (C) 1994 Academ
ic Press, Inc.