特異性：Von Willebrand Factor Antigen The unconjugated immunoglobulin gives no arcs when tested by IEP against human serum. Identity has been confirmed by double diffusion (Ouchterlony) against human VWF and an anti-human VWF of known specificity.
純度：Delipidated and, if necessary, absorbed to monospecificity by use of solid-phase absorbants. Following adsorption an immunoglobulin fraction is produced by ion-exchange chromatography and preservatives are added. The immunoglobulin fraction is then conjug
