NUCLEOGUARD HPLC guard column, NUCLEODUR C18 Gravity, >5 µm, 4x3 mm
For protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column then these short columns can help you. Recommended for use with analytical columns having an inner diameter of 3, 4 and 4.6 mm.
| Base material | NUCLEODUR - high purity silica |
|---|---|
| Brand | NUCLEODUR |
| Carbon content | 18.0 % |
| Column inner diameter | 3 mm |
| Column length | 4 mm |
| Eluent in HPLC column | Acetonitrile – water |
| Endcapped | Yes |
| Gross weight (incl. packaging) | 22.5 g / 0.05 lbs |
| Hardware | Stainless steel |
| Hazardous material | No |
| Method | HPLC, analytical |
| Mode | Reversed phase (RP) |
| Packaging dimensions | 115 x 60 x 28 mm / 4.53 x 2.36 x 1.10 Inch |
| Particle shape | Spherical |
| Particle size | 5 µm |
| Particle type | Fully porous particles (FPP) |
| pH stability | 1.0–11.0 |
| Phase | NUCLEODUR C18 Gravity |
| Pore size | 110 Å |
| Pressure stability (max) | 600 bar / 8700 psi |
| Recommended application(s) | Guard column, ideal protection for your main column, HPLC |
| Specific surface according to BET | 340 m²/g |
| Surface chemistry | Base deactivated (BDS), High density octadecyl (C18, ODS) modification |
| Temperature stability (max) | 60 °C |
| Type | EC HPLC guard column (analytical) |
| USP listing | L1 |
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