... Abstract An effect of three groups of monoclonal antibodies specific to different regions of HRP on it’s catalytic activity in the course of oxidation of ABTS and stability during p -iodophenol (PIP) oxidation and light emission in the ECL reaction was studied. ... Moscow University Chemistry Bulletin . 2002, Vol. ... 6, P. 374 . Copyright (C) Chemistry Dept., Moscow State University, 2002 . ... Copyright (C) Chemisty Department of Moscow State University . ...