Viva Silica Columns (USP L3)
Viva columns are based on a wide pore material we designed for optimal large-molecule separations.In developing Viva silica, we found that although many commercial wide-pore silicas meet the standard 300 Å mean pore size, most have very broad distributions about this mean, with a significant portion of their pore volume falling below 150 Å.This means a large portion of the surface area is unavailable to larger molecules. Viva…
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Viva columns are based on a wide pore material we designed for optimal large-molecule separations.
In developing Viva silica, we found that although many commercial wide-pore silicas meet the standard 300 Å mean pore size, most have very broad distributions about this mean, with a significant portion of their pore volume falling below 150 Å.
This means a large portion of the surface area is unavailable to larger molecules. Viva columns have a narrow distribution around the mean pore size, permitting a larger portion of the silica surface to play a role in the separation.
Viva Silica Columns (USP L3) Features:
- Excellent for separating peptides or proteins.
- Rugged, spherical particles with 300 Å pore size.
- High proportion of pore/surface area available to large molecules.
Particle size: 5 μm, spherical
Pore size: 300 Å
pH range: 2.5 to 8
Temperature limit: 80 °C
USP phase code: L3
Phase category: bare silica
Ligand type: none
