A method of effecting an immunoassay using affinity chromatography which a sample is injected into a reusable column charged with antibody applied on a solid support, an eluent is injected into the column to elute antigen bound with the antibody on the solid support, and an amount of eluted antigen is...http://www.google.de/patents/US4937200?utm_source=gb-gplus-sharePatent US4937200 - Method of effecting immunoassay by using affinity chromatography
