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The Waters Delta-Pak C4 Sentry Guard pre-column cartridges 20x3.9mm, 5µm, are used to protect Delta-Pak C4 HPLC columns with 3.9mm internal diameter installed. The Sentry Guard holder WAT064910 is required as the pre-column holder.
Delta-Pak is based on spherical, bonded, and end-capped silica. The 100-Å materials are designed for small molecules and peptides, while the 300-Å pores allow larger peptides and proteins better access to the bonded phase. C18 provides stronger hydrophobic retention; C4 reduces this interaction and is particularly suitable for larger biomolecules. With 5- and 15-µm packing sizes and a range of column inner diameters, Delta-Pak can be scaled from analytical methods to preparative purification.
Delta-Pak is a registered trademark of Waters Corporation, Milford, Massachusetts, USA.
| Brand | DeltaPak |
|---|---|
| Product Type | HPLC Guard Columns |
| Length | 20 mm |
| Internal Diameter | 3.9 mm |
| Particle Size | 5 µm |
| Chemistry | C4 |
| Chemistry Producers Term | C4 |
| Pore Size | 100 Å |
| USP Class | L26 |
| Carbon Load | 7.3 % |
| Bet Surface Area [m2/g] | 300.0 |
| Endcapping | endcapped |
| Country of Origin | United States of America (USA) |
| pH Minimum | 2.0 |
| pH Maximum | 8.0 |
| Mode of Separation | Reversed Phase Chromatography (RP) |
| Matrix | Silica |
| Particle Morphology | spherical, fully porous |