ABSTRACT
The use of immunological reagents such as antibodies and antigens has become popular in many biochemical, biotechnological, and medical fields. For instance, immunoaffinity separations are now widely used as tools for the preanalytical cleanup of samples, drug screening, toxicology, and clinical chemistry [1-7]. One of the major attractions of this approach is the specificity and selectivity of antibody-antigen interactions, which can be used to isolate a single analyte from both simple and complex biological matrices.
