VP HPLC guard column (preparative), NUCLEODUR, 10x8 mm
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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.
| Base material | NUCLEODUR - high purity silica |
|---|---|
| Brand | NUCLEODUR |
| Carbon content | Not available or not applicable |
| Column inner diameter | 8 mm |
| Column length | 10 mm |
| Eluent in HPLC column | n-heptane |
| Endcapped | No |
| Gross weight (incl. packaging) | 28.8 g / 0.06 lbs |
| Hardware | Stainless steel |
| Hazardous material | No |
| Method | HPLC, preparative |
| Mode | Normal phase (NP) |
| Packaging dimensions | 115 x 60 x 28 mm / 4.53 x 2.36 x 1.10 Inch |
| Particle shape | Spherical |
| Particle size | Proprietary |
| Particle type | Fully porous particles (FPP) |
| pH stability | 2.0–8.0 |
| Phase | NUCLEODUR |
| Pore size | 110 Å |
| Pressure stability (max) | 400 bar / 5800 psi |
| Recommended application(s) | For all NUCLEODUR and NUCLEOSIL normal phases, ideal protection for your main column, Polar universal guard column cartridge |
| Recommended flow rate | 2–6 mL/min |
| Scope of delivery | 2x preparative HPLC guard column |
| Specific surface according to BET | 340 m²/g |
| Storage temperature | 15–25 °C / 59–77 °F |
| Surface chemistry | Unmodified silica gel (SiOH) |
| Temperature stability (max) | 60 °C |
| Type | VP HPLC guard column (preparative) |
| USP listing | L3 |