A HIGHLY SENSITIVE METHOD FOR DETECTING PEROXIDASE

摘要

The present invention is directed to a composition of matter and a process for detecting the presence of an oxidative catalyst in a biological sample. The composition comprises a precipitate formed by oxidation of a chromogenic substrate in the presence of the catalyst, together with two or more co-precipitated metals. A strong signal is formed with which to detect an oxidation catalyst which is localized to a target molecule. Target molecules may be nucleic acids, antibodies or cell surface antigens.