Asahipak GS-220 20F 300x20mm Gel Filtration (GFC) Preparative Column

Asahipak GS-220 20 300x20mm, 13µm, is a preparative HPLC column and contains a coarser polyvinyl alcohol gel with a nominal pore size of 150 Å. With a nominal working range of approx. 300 to 3,000 Da (Pullulan), Asahipak GS-220 20 primarily addresses preparative fractions of oligosaccharides and low-molecular-weight water-soluble substances. The large-volume column format allows higher loadings and scale-up of the GS-220 HQ selectivity. The stated molecular weight ranges are nominal, calibration-dependent guideline values.

Features and Benefits

• Hydrophilic polyvinyl alcohol matrix
• Multiple separation mechanisms available
• Broad solvent and pH compatibility
• Low nonspecific adsorption
• Analytical and preparative formats

Additional Information

The Asahipak product family is primarily based on porous polyvinyl alcohol particles. The hydrophilic polymer backbone is chemically stable and, compared to silica, produces only minimal undesirable interactions with basic compounds or biomolecules. Reverse-phase, HILIC, ion exchange, and size exclusion chromatography are supported through C18, C4, amino, and ion-exchange modifications, as well as defined pore sizes. Same-phase guard columns protect the packing bed from particles and highly retained matrix components.

Legal Information

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