Pinnacle DB columns are 100% manufactured by Restek in the Bellefonte, Pennsylvania, facility. Because performance begins with the support, Pinnacle® DB UHPLC columns start with base-deactivated spherical silica that is optimized for UHPLC stability. From there, Restek bonds them with a wide variety of phases to give chromatographers a stable and selective column. These columns combine selectivity and eiciency for UHPLC columns.
Phase
|
Particle Size
[µm] |
Pore Size
[Å] |
pH-Range
|
Endcapping
|
| Cyano |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| Aqueous C18 |
1.9, 3, 5 |
140 |
2.5 - 8 |
no |
| BiPh |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| C18 |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| C8 |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| IBD |
1.9 |
140 |
2.5 - 8 |
no |
| PFP |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| Silica |
1.9, 3, 5 |
140 |
2.5 - 8 |
no |
The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications.
Phase
|
Particle Size
[µm] |
Pore Size
[Å] |
pH-Range
|
Endcapping
|
| C18 |
3, 5 |
100 |
2.5 - 8 |
yes |
| C8 |
3, 5 |
100 |
2.5 - 8 |
yes |
| C4 |
3, 5 |
100 |
2.5 - 8 |
yes |
| C1 |
3, 5 |
100 |
2.5 - 8 |
- |
| Aromax |
3, 5 |
100 |
2.5 - 8 |
yes |
| Aqueous C18 |
3, 5 |
100 |
2.5 - 8 |
no |
| Biphenyl |
3, 5 |
100 |
2.5 - 8 |
yes |
| IBD |
3, 5 |
100 |
2.5 - 5 |
no |
| PFP |
3, 5 |
100 |
2.5 - 8 |
yes |
| Cyano |
3, 5 |
100 |
2.5 - 8 |
yes |
| Amino |
3, 5 |
100 |
2.5 - 8 |
no |
| Silica |
3, 5 |
100 |
2.5 - 8 |
no |
Viva columns are based on a wide-pore material Restek designed for optimal large- molecule separations. In developing Viva silica, Restek 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 signiicant 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.
Phase
|
Particle Size
[µm] |
Pore SIze
[Å] |
pH-Range
|
Endcapping
|
| C18 |
3, 5 |
300 |
2.5 - 8 |
yes |
| C8 |
5 |
300 |
2.5 - 8 |
yes |
| C4 |
5 |
300 |
2.5 - 8 |
yes |
| Biphenyl |
5 |
300 |
2.5 - 8 |
yes |
| PFP |
5 |
300 |
2.5 - 8 |
yes |
| Silica |
5 |
300 |
2.5 - 8 |
- |
Pinnacle II columns are 100% manufactured by Restek in the Bellefonte, Pennsylvania, facility. Because performance begins with the support, Pinnacle II HPLC columns start with base-deactivated spherical silica that is optimized for HPLC stability. From there, Restek bonds them with a wide variety of phases to give chromatographers a stable and selective column. These columns combine selectivity and eiciency for HPLC columns.
Phase
|
Particle Size
[µm] |
Pore Size
[Å] |
pH-Range
|
Endcapping
|
| Cyano |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| BiPh |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| C18 |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| C8 |
1.9, 3, 5 |
140 |
2.5 - 8 |
yes |
| PAH |
1.9 |
140 |
2.5 - 8 |
no |
| Silica |
1.9, 3, 5 |
140 |
2.5 - 8 |
no |
