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For chromatographic separations, the Asahipak GS-510 20G preparative SEC column is available 300x20mm, 13µm, which contains a hydrophilic polyvinyl alcohol gel with a nominal pore size of 2,000 Å. For polysaccharides, proteins and larger water-soluble polymers on a preparative scale, Asahipak GS-510 20G provides a nominal molecular weight range of approximately 5,000 to 200,000 Da (pullulan). The wide-pore, robust packing is designed for scale-up and fraction collection. The stated molecular weight ranges are nominal, calibration-dependent guideline values.
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.
Asahipak is a registered trademark of the manufacturer, Resonac Corporation, Tokyo, Japan.
| Brand | Asahipak |
|---|---|
| Product Type | SEC/GPC Columns |
| Length | 300 mm |
| Internal Diameter | 20 mm |
| Particle Size | 13 µm |
| Chemistry Producers Term | GS |
| Country of Origin | Japan |
| Column Type | Preparative Column |
| Base Material | Polyvinylalcohol |
| Hardware Type | Ready-to-use Column |
| Mode of Separation | SEC / Aqueous Size Exclusion Chromatography (GFC) |
| Technology | HPLC |
| Matrix | Polymer |