Our fluorescent secondary antibodies are unmatched in quality for immunological techniques. All antibodies are prepared using proprietary immunization schedules that produce high-affinity antibodies. The antibodies are affinity-purified by chromatography, and cross-reactivities that are likely to interfere with specific labeling are removed by solid-phase adsorption techniques. Antibodies are conjugated to ensure optimal labeling without compromising antibody specificity or affinity.