Whatman Advanced Ion Exchange Cellulose (AIEC)  products are ideal for the separation of charged biopolymers and are suitable for a wide variety of applications.  Available as:

• Preswollen microgranular AIEC for high load capacity, fast kinetics and resolution; saves time by eliminating the need for precycling prior to buffer equilibrium
• Dry microgranular AIEC for similar performance characteristics as preswollen media after precycling; reduces the possibility of bacterial growth
• Fibrous AIEC for maximum throughput at high flow rates
• Commonly used anion and cation exchange functional groups: DEAE (diethylaminoethyl tertiary amine) and CM (ether-linked carboxymethyl)
• Orthophosphate bifunctional cation exchanger for sharp separation of medium molecular weight molecules

Ion Exchange Celluloses are also available in paper format.