The Egyptian pyramids were built near the Nile, so that the stone blocks could be transported by water. The stationary phase of NUCLEODUR C18 Pyramid is based on high purity silica gel and is modified by an octadecyl modification with polar endcapping. Polar endcapping makes this C18 phase suitable for aqueous eluents and is also so called "aqua column".
| Method | HPLC/UHPLC, analytical |
| Brand | NUCLEODUR |
| Base material | NUCLEODUR - high purity silica |
| Phase | NUCLEODUR C18 Pyramid |
| USP listing | L1 |
| Surface chemistry | Octadecyl (C18, ODS) modification, Polar endcapping |
| Mode | Reversed phase (RP) |
| Type | EC UHPLC column (analytical) |
| Hardware | Stainless steel |
| Column length | 50 mm |
| Column inner diameter | 3 mm |
| Particle type | Fully porous particles (FPP) |
| Particle shape | Spherical |
| Particle size | 1.8 µm |
| Eluent in HPLC column | Acetonitrile – water |
| Recommended application(s) | Analgesics, Complexing agents, Nucleic acid bases, Organic acids, Penicillin antibiotics, RP applications UHPLC, Suitable for 100 % aqueous eluents, Suitable for LC-MS, Water-soluble vitamins |
| Endcapped | Yes |
| Carbon content | 14.0 % |
| pH stability | 1.0–9.0 |
| Pore size | 110 Å |
| Specific surface according to BET | 340 m²/g |
| Temperature stability (max) | 60 °C |
| Pressure stability (max) | 900 bar / 13050 psi |
| Column volume | 0.35 mL |
| Storage temperature | 15–25 °C / 59–77 °F |
| Scope of delivery | 1x analytical HPLC/UHPLC column, instruction leaflet, certificate of analysis |
| Gross weight (incl. packaging) | 129.63 g / 0.28 lbs |
| Packaging dimensions | 235 x 117 x 54 mm / 9.25 x 4.61 x 2.13 Inch |
| Hazardous material | No |
