Viva Silica, 5 µm, 250 x 2.1 mm HPLC Column

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.

Base-deactivated spherical silica is useful for normal-phase or HILIC separations.

Stationary Phase Category: bare silica (L3)
Ligand Type: none
Particle: 5 µm, spherical
Pore Size: 300 Å
Carbon Load: n/a
End-Cap: n/a
Surface Area: 100 m²/g
pH Range: 2.5 to 8
Maximum Temperature: 80 °C

Features & Benefits

• Excellent for separating peptides or proteins.
• Rugged, spherical particles with 300 Å pore size.
• High proportion of pore/surface area available to large molecules.

Guard column requires Trident LC column protection system or Trident HPLC in-line guard cartridge holder.