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As a preparative HPLC column300x20mm, 13µm, a coarser polyvinyl alcohol gel with a nominal pore size of 400 Å is used in Asahipak GS-320 20.Asahipak GS-320 20 is tuned to a typical molecular weight range of approximately 300 to 20,000 Da (pullulan), enabling oligosaccharides, peptides and other water-soluble oligomers to be differentiated at the preparative scale.The combination of larger pore and high bed capacity supports 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 |