D40 weak anion exchange packing is base on highly cross-linked PS/DVB microsphere,and has high pressure and wide pH stability.With sophisticated surface treatment technology and bonding technique,this product has excellent performance in protein separation.It is suitable for protein purification and production from laboratory to industrial scale production processes ● Substrate:Porous polystyrene-divinylbenzene ● Particle Size:40um ● Its excellent Dynamic loads(Dynamic binding capacity,DBC),very low non-specific adsorption and recovery etc,and narrow size distribution and low back pressure to make it more suitable for operation under high flow velocity