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The RSpak DC Guard Columns 10x4.6mm, 10µm, are used to protect RSpak DC HPLC columns used. The phase-identically packed guard columns are complete pre-columns and are operated without a separate cartridge holder.
RSpak comprises various polymer matrices made of styrene-divinylbenzene, polymethacrylate, polyhydroxymethacrylate, and polyvinyl alcohol. Selectivity arises either from the intrinsic polymer surface or from additional sulfo, carboxyl, or ammonium groups. As a result, the product family ranges from polymeric reverse-phase columns to HILIC-like distribution, as well as mixed-mode, ligand-exchange, and ion-exclusion mechanisms. The silica-free packing materials are particularly suitable for extreme pH values and highly aqueous mobile phases.
Shodex is a registered trademark of Resonac Corporation, Tokyo, Japan. RSpak is a product line within the Shodex portfolio.
| Brand | RSpak |
|---|---|
| Product Type | HPLC Guard Columns |
| Length | 10 mm |
| Internal Diameter | 4.6 mm |
| Particle Size | 10 µm |
| Chemistry Producers Term | DC |
| USP Class | L22, L58 |
| Country of Origin | Japan |
| Solvent | H2O/ACN = 30/70 |
| Base Material | Styrene-divinylbenzene |
| Hardware Material | Stainless Steel |
| Hardware Type | Ready-to-use Column |
| pH Minimum | 2.0 |
| pH Maximum | 13.0 |
| Temperature Minimum [°C] | 40 |
| Temperature Maximum [°C] | 85 |
| Mode of Separation | Ligand Exchange Chromatography |
| Technology | HPLC |
| Matrix | Polymer |
| Counter Ion | Sodium (Na+) |