*taxes and shipping not included
Delivery time approx. 5 working days
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.
| Method | HPLC, analytical |
| Brand | NUCLEOSHELL |
| Base material | NUCLEOSHELL - core-shell silica |
| Phase | NUCLEOSHELL RP 18 |
| USP listing | L1 |
| Surface chemistry | Base deactivated (BDS), High density monomeric octadecyl (C18, ODS) modification |
| Mode | Reversed phase (RP) |
| Type | EC HPLC guard column (analytical) |
| Hardware | Stainless steel |
| Column length | 4 mm |
| Column inner diameter | 3 mm |
| Particle type | Core-shell, superficially porous particles (SPP) |
| Particle shape | Spherical |
| Particle size | 2.7 µm |
| Eluent in HPLC column | Acetonitrile – water |
| Recommended application(s) | Guard column, ideal protection for your main column, HPLC |
| Endcapped | Yes |
| Carbon content | 7.8 % |
| pH stability | 1.0–11.0 |
| Pore size | 90 Å |
| Specific surface according to BET | 90 m²/g |
| Temperature stability (max) | 60 °C |
| Pressure stability (max) | 600 bar / 8700 psi |
| Storage temperature | 15–25 °C / 59–77 °F |
| Scope of delivery | 3x analytical HPLC guard columns |
| Gross weight (incl. packaging) | 22.4 g / 0.05 lbs |
| Packaging dimensions | 115 x 60 x 28 mm / 4.53 x 2.36 x 1.10 Inch |
| Hazardous material | No |
