Kromasil 1.8, 2.5 are the classic Kromasil materials with a smaller particle size of 1.8 and 2.5 µm. The phases are therefore suitable for UHPLC and show identical selectivity to Kromasil Classic with larger particles. This means that methods can be developed in UHPLC and easily scaled up to preparative dimensions.
| Phase | Modification | Particle size | Pore size | End-capping | C-content | USP | Surface area | pH range | Tmax |
| Kromasil 100 C4 | C4 | 1.8, 2.5 µm | 100 Å | + | 20% | L1 | 320m2/g | 2.0-10.0 | 60 °C |
| Kromasil 100 C8 | C8 | 1.8, 2.5 µm | 100 Å | + | 12% | L7 | 320m2/g | 2.0-9.5 | 60 °C |
| Kromasil 100 C18 | C18 | 1.8, 2.5 µm | 100 Å | + | 12% | L26 | 320m2/g | 2.0-9.5 | 60 °C |
Kromasil 1.8 Beyond Expectations UHPLC Columns Brochure
Kromasil 2.5µm Moving Faster UHPLC/HPLC Columns Brochure