IEC CM-825, 8.0 x 75 mm, HPLC column

The Shodex IEC CM-825 HPLC column 75x8.0mm, 8µm, is used with carboxymethyl groups as a weak cation exchanger on a macroporous polyhydroxymethacrylate gel. The pH-dependent ionisation enables milder and differentiated cation exchange selectivity. The hydrophilic 5,000Å matrix supports high recovery of sensitive biomolecules. Typical application areas of the Shodex IEC CM-825 are proteins, peptides and enzymes with a net positive charge.

Features and Benefits

• Strong and weak ion exchangers
• Anion and cation phases
• Large-pore materials for biomolecules
• Non-porous option for rapid separations
• Hydrophilic polymer backbones

Additional Notes

The IEX Series combines polyhydroxymethacrylate, polyvinyl alcohol, and styrene-divinylbenzene frameworks. Quaternary ammonium and sulfopropyl groups act as strong ion exchangers, while DEAE and carboxymethyl groups act as weak ion exchangers. Large-pore packing improves access for proteins and nucleic acids, while nonporous particles offer particularly short transport paths. The choice of phase depends on net charge, isoelectric point, molecular size, and the desired elution strategy.

Legal Information

Shodex is a registered trademark of Resonac Corporation, Tokyo, Japan. The IEX Series is a product line within the Shodex portfolio.