by RESTEK
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.
| Vendor | RESTEK | Pore size | 100 |
| Brand | Ultra | Carbon Load, % | 15.0 |
| Modifification | Silica/Diphenyl | Endcapped | Yes |
| Mode | Reversed-Phase | Operating Temperature | 80 |
| Particle Size | pH stability from | 2.5 | |
| Length | pH stability to | 8.0 | |
| Internal Diameter |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Fortis Technologies | Fortis Diphenyl | Reversed-Phase | Silica/Diphenyl | 2.1 mm | 150 mm | 1.7 μm | — | On request |
| Agilent Technologies | Agilent Pursuit | Reversed-Phase | Silica/Diphenyl | 4.0 mm | 150 mm | 3.0 μm | 180 Å | On request |
| Agilent Technologies | Pursuit XRs Ultra | Reversed-Phase | Silica/Diphenyl | 2.0 mm | 30 mm | 2.8 μm | 100 Å | On request |
| RESTEK | Ultra | Reversed-Phase | Silica/Diphenyl | 1.0 mm | 150 mm | 3.0 μm | 100 Å | On request |
| RESTEK | Ultra | Reversed-Phase | Silica/Diphenyl | 3.2 mm | 100 mm | 5.0 μm | 100 Å | On request |
| GRACE | Vydac TP Diphenyl | Reversed-Phase | Silica/Diphenyl | 2.1 mm | 250 mm | 5.0 μm | 300 Å | On request |
| Agilent Technologies | Pursuit XRs Ultra | Reversed-Phase | Silica/Diphenyl | 2.0 mm | 50 mm | 2.8 μm | 100 Å | On request |
| RESTEK | Viva | Reversed-Phase | Silica/Diphenyl | 2.1 mm | 200 mm | 5.0 μm | 300 Å | On request |
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