FMBA-BSA conjugate was synthesised, IgG-anti-FMBA was isolated from ra
bbit antiserum by consecutive chromatography through protein A-sepharo
se, BSA-sepharose, FMBA-toyopearl. The obtained antibodies reacted wit
h FMBA-BSA only, not with BSA in enzyme-mediated immunoassay. Methodic
al approaches has been proposed for the isolation of highly purified a
ntibodies to PAH, preparation of monoclonal antidiotypic antibodies to
PAH and for the development of the methods of their detection in men
and animals.