FREEZE-DRIED COMPOSITION CONTAINING ENZYME-LABELED ANTIHUMAN INTERFERON--g(b) ANTIBODY AND ENZYMATIC IMMUNOASSAY KIT CONTAINING THE COMPOSITION.

摘要

The present invention relates to the stabilization of enzyme-labeled antihuman interferon- beta antibodies for use in an enzymatic immunoassay of human interferon- beta and provides a freeze-dried composition containing an antihuman interferon- beta antibody enzyme-labeled in the presence of trehalose as a nonreducing disaccharide. The freeze-dried composition according to the present invention whose reduction in enzymatic activity remains minimized even when stored for a long period of time is conveniently incorporated into an EIA kit. No ordinary non-volatile buffer solution such as a phosphate buffer solution is added to the original freeze-dried liquid of the present invention.