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 | Internal Diameter | |
| Brand | Ultra | Pore size | 100 |
| Modifification | Silica | Endcapped | No |
| Mode | Normal-Phase | Operating Temperature | 80 |
| Particle Size | pH stability from | 2.5 | |
| Length | pH stability to | 8.0 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| RSTech | HECTOR-M Silica | Normal-Phase | Silica | 3.9 mm | 100 mm | 3.0 μm | 100 Å | On request |
| RESTEK | Ultra | Normal-Phase | Silica | 4.6 mm | 100 mm | 3.0 μm | 100 Å | On request |
| Luknova | Hyper Silica-120 | Normal-Phase | Silica | 2.1 mm | 250 mm | 3.0 μm | 120 Å | On request |
| RESTEK | Viva | Normal-Phase | Silica | 2.1 mm | 250 mm | 5.0 μm | 300 Å | On request |
| ES Industries | Chromegasphere SI 80 (Spherical) | Normal-Phase | Silica | 4.0 mm | 100 mm | 5.0 μm | 80 Å | On request |
| CHEMINDIA | CHEMSIL-SILICA | Normal-Phase | Silica | 4.0 mm | 33 mm | 5.0 μm | 60 Å | On request |
| RESTEK | Viva | Normal-Phase | Silica | 4.6 mm | 200 mm | 5.0 μm | 300 Å | On request |
| ES Industries | Chromegasphere SI 60/HS (Spherical) | Normal-Phase | Silica | 4.0 mm | 150 mm | 5.0 μm | 60 Å | On request |
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