Restek / Viva
Viva
Viva™ columns are based on a rugged, spherical silica-particles with 300 Å pore size. They are excellent for separating large molecules, such as peptides or proteins. Viva™ columns have a narrow distribution around the mean pore size, permitting a large portion of the silica surface to play a role in the separation.
| Phase-Name | Modification | Particle Size | Pore Size | End-capping | C-Content | USP | Surface | pH-Range | Tmax |
| Viva™ C18 | C18 | 3, 5 µm | 300 Å | + | 9% | L1 | 100 m2/g | 2.5‒8.0 | 80 °C |
| Viva™ C8 | C8 | 5 µm | 300 Å | + | 5% | L7 | 100 m2/g | 2.5‒8.0 | 80 °C |
| Viva™ C4 | C4 | 5 µm | 300 Å | + | 3.5% | L26 | 100 m2/g | 2.5‒8.0 | 80 °C |
| Viva™ Biphenyl | Biphenyl | 5 µm | 300 Å | + | 7% | L11 | 100 m2/g | 2.5‒8.0 | 80 °C |
| Viva™ PFP Propyl | Pentafluorophenylpropyl | 5 µm | 300 Å | + | 5% | L43 | 100 m2/g | 2.5‒8.0 | 80 °C |
| Viva™ Silica | - | 5 µm | 300 Å | - | - | L3 | 100 m2/g | 2.5‒8.0 | 80 °C |