特異性：Transferrin The unconjugated immunoglobulin gives a single arc when tested by IEP against human serum. Identity has been confirmed by double diffusion (Ouchterlony) against human serum and an anti-human transferrin of known specificity. Transferrin is
純度：If necessary, the antiserum is adsorbed to monospecificity by use of solid-phase adsorbants. Following adsorption, an immunoglobulin fraction is produced by ion-exchange chromatography. The immunoglobulin fraction is conjugated with horseradish peroxidase
