OHpak SB-2004, 20.0 x 300 mm, preparative HPLC column

The OHpak SB-2004 preparative SEC column 300x20mm, 18µm, contains a hydrophilic polyhydroxy methacrylate gel with a nominal pore size of 2,000 Å. With a nominal working range of approximately 5,000 to 400,000 Da, OHpak SB-2004 addresses primarily polysaccharides and larger polymers. The larger column format enables higher sample loads and fractionation in scale-up. The stated molecular weight ranges are nominal, calibration-dependent guideline values.

Features and Benefits

• Hydrophilic methacrylate-based SEC gels
• Very wide molecular weight range
• Low-bleed phases for light-scattering detection
• Aqueous and selected polar organic eluents
• Analytical and preparative formats

Additional Notes

OHpak is based on porous polyhydroxymethacrylate gels with graded or mixed pore distributions. The hydrophilic polymer surface is optimized for aqueous SEC and can also be adapted for use with DMF in many SB and LB phases; exceptions and adaptation procedures depend on the specific product. The LB series features controlled, low column bleeding for MALS and viscosity detectors, while the SB-2000 series allows for higher loadings on a preparative scale.

Legal Information

OHpak is a registered trademark of the manufacturer Resonac Corporation, Tokyo, Japan.