Hydrazide gel binds to sugar / carbohydrate groups found on the side chains of anti-bodies or Haptens.Sodium Meta-periodate oxoidiser is used to oxidise sugar molecules on glyco-proteins prior to attachment to Hydrazide Gel . This reagent is used in an essential chemical conversion reaction to make Hydrazide gel bind the antibody or hapten in making the affinity column.Supplied in 25g pack