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Symmetry Shield RP 8 Sentry Guard Cartridge, 100Å, 3.5 µm, 3.9 mm X 20 mm, 2/pkg
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Product Description
The Waters Symmetry Shield RP8 Sentry pre-column cartridges 20x3.9mm, 3.5µm, are used before Symmetry Shield RP8 HPLC columns. For 3.9mm Sentry cartridges the holder WAT046910 is used.
Performance Characteristics and Benefits
- High-purity, tightly specified silica
- Low residual silanol activity
- Reproducible peak shapes
- Shield phases with embedded polar groups
- 100 and 300 Å platforms
Additional Notes
Symmetry is based on high-purity silica and strictly controlled manufacturing and packing specifications. The classic C18 and C8 phases are designed to minimize unwanted silanol interactions and ensure reproducible peak shapes. In SymmetryShield, a polar group is embedded in the alkyl phase, which alters the selectivity and behavior of basic analytes compared to conventional alkyl phases. Symmetry300 uses a wide-pore 300 Å silica and extends the series to peptides, proteins, and other larger biomolecules.
Legal Information
Symmetry is a registered trademark of Waters Corporation, Milford, Massachusetts, USA.
Product Specification
| Brand | Symmetry |
|---|---|
| Product Type | HPLC Guard Cartridges |
| Length | 20 mm |
| Internal Diameter | 3.9 mm |
| Particle Size | 3.5 µm |
| Chemistry | C8 (RP-8, MOS, Octyl), C8 polar embedded |
| Chemistry Producers Term | Shield RP8 |
| Pore Size | 100 Å |
| USP Class | L7 |
| Carbon Load | 15.0 % |
| Bet Surface Area [m2/g] | 335.0 |
| Endcapping | endcapped |
| Country of Origin | United States of America (USA) |
| Hardware Material | Stainless Steel |
| pH Minimum | 2.0 |
| pH Maximum | 8.0 |
| Mode of Separation | Reversed Phase Chromatography (RP) |
| Technology | HPLC |
| Matrix | Silica |
| Particle Morphology | spherical, fully porous |
