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, % | 20.0 |
| Modifification | Silica/C18 | 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 |
|---|---|---|---|---|---|---|---|---|
| GRACE | Alltima HP C18 | Reversed-Phase | Silica/C18 | 0.15 mm | 150 mm | 3.0 μm | 190 Å | On request |
| Welch Materials | Ultisil AQ-C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 100 mm | 5.0 μm | 120 Å | On request |
| KNAUER | Eurospher II | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 3.0 μm | 100 Å | On request |
| CERI | L-column2 ODS | Reversed-Phase | Silica/C18 | 3.0 mm | 100 mm | 2.0 μm | 120 Å | On request |
| CHEMINDIA | CHEMSIL-ODS(2)-C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 33 mm | 5.0 μm | 100 Å | On request |
| Higgins Analytical | TARGA C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 3.0 μm | 120 Å | On request |
| Thermo Fisher Scientific | Aquasil | Reversed-Phase | Silica/C18 | 1.0 mm | 50 mm | 5.0 μm | 100 Å | On request |
| ChromaNik Technologies Inc. | Sunniest C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 5.0 μm | 120 Å | On request |
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