Shim-pack Bio IEX Ion Exchange Columns are available in Q (quaternary ammonium) and SP (sulfopropyl) chemistries and are based on porous (Q and SP columns) and non-porous (Q-NP and SP-NP columns) hydrophilic polymers with low nonspecific adsorption. The porous particles offer excellent binding capacity with exceptionally high efficiency, and the non-porous particles offer high efficiency and exceptional resolution.

Shim-pack Bio IEX Q-NP SP-NP Q SP
Particle hydrophilic non-porous polymer hydrophilic non-porous polymer
Particle Size 3 μm, 5 μm 5 μm
Ligand -CH2N+(CH3)3 -(CH2)3SO3 -CH2N+(CH3)3 -(CH2)3SO3
pH Range 2 - 12