Antibody Purification Protein A Agarose Resin PA09 PA09 Protein A agarose resin consists of rProtein A covalently bound to crosslinked agarose beads. It provides a very stable bond that can greatly minimize leakage of the Protein A allowing for reuse of the affinity resin in several purification steps. The resin works well in batch or column purifications (Low Flow). ABT offers 5ml and 25ml. For Bulk... Add to cart Select 500 ml 25 ml 100 ml 5 ml Add to cart