NETA ALERT: Due to inclement weather our offices are closed today, Monday Feb. 23. We will not be shipping orders.
The store will not work correctly when cookies are disabled.
We use cookies to make your experience better.To comply with the new e-Privacy directive, we need to ask for your consent to set the cookies. Learn more.
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.
Description
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, wide-pore packing exhibits excellent peak shape for a wide range of compounds. Less retention in reversed-phase assays than Viva C18 or Viva C8.
Stationary Phase Category: C4, butylsilane (L26) Ligand Type: monomeric C4 Particle: 5 µm, spherical Pore Size: 300 Å Carbon Load: 3.5% End-Cap: yes Surface Area: 100 m2/g pH Range: 2.5 to 8 Maximum Temperature: 80 °C
