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The Asahipak NH2PPre-columns or Guard Columns10x3.0mm, 5µm, are used to protect AsahipakNH2P HPLC and SEC columns are used. As these are prepacked guard columns, no additional holder is required.
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 | HPLC Guard Columns |
| Length | 10 mm |
| Internal Diameter | 3.0 mm |
| Particle Size | 5 µm |
| Chemistry Producers Term | NH2P |
| USP Class | L82 |
| Country of Origin | Japan |
| Solvent | CH3CN |
| Base Material | Polyvinylalcohol |
| Hardware Material | Stainless Steel |
| Hardware Type | Ready-to-use Column |
| pH Minimum | 2.0 |
| pH Maximum | 13.0 |
| Temperature Minimum [°C] | 15 |
| Temperature Maximum [°C] | 50 |
| Mode of Separation | Hydrophilic Interaction Chromatography (HILIC) |
| Technology | HPLC |
| Matrix | Polymer |