The SunArmor columns are stable under basic conditions. This is achieved due to a special endcapping. There exist three different phases (C18, RP-Aqua, NH2), which are all available in 3 and 5 μm. All phases are based on the same 120 Å, 340 m²/g material. Therefore, these phases show excellent peak shape for acidic, basic and metal chelating compounds, without the effect of residual silanol groups.
| Phase | Modification | Particle size / μm | Pore size / Å | Surface area / m²/g | Carbon content / %C | pH range | USP code |
| C18 | C18 | 3, 5 | 120 | 340 | 17 | 2.0-12 | L1 |
| RP-Aqua | C28 | 3, 5 | 120 | 340 | 18 | 2.0-10 | Equivalent L62 |
| NH2 | NH2 | 3, 5 | 120 | 340 | 6.5 | 2.0-12 | L8 |
Chromanik Sunarmor Catalogue