by MicroSolv Technology Corporation
Silica Hydride HPLC Columns Unbonded
The Cogent Silica-C™ is HPLC grade silica with a silicon hydride surface (silica hydride). Made completely free of carbon, this unique stationary phase will adsorb and desorb solvents commonly used in mobile phases very differently from ordinary silica resulting in fantastic benefits to the chromatographer.
Since these columns have virtually no silanols remaining (less than 2%), they do not have a strong association with water and other solvents and will not have the expected hydration shell of other silica based columns. This allows you to use them for normal phase HPLC without having to concern yourself with the moisture content of the solvents.
Excellent choice for normal phase and preparative chromatography because they produce a very unique selectivity are extremely stable for long column life and can be used to retain some polar compounds making it a favorite of many doing LCMS and medicinal chemistry.
| Vendor | MicroSolv Technology Corporation | Pore size | 100 |
| Brand | Cogent Silica-C | Max Pressure | 4500 |
| Modifification | Silica | Surface Area | 350 |
| Mode | Normal-Phase | Endcapped | N/A |
| Particle Size | Operating Temperature | 60 | |
| Length | pH stability from | 2.0 | |
| Internal Diameter | pH stability to | 7.0 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Merck | Chromolith® | Normal-Phase | Silica | 10.0 mm | 100 mm | Monolithic μm | 130 Å | On request |
| Teknokroma | Tracer EXTRASIL Silica | Normal-Phase | Silica | 4.0 mm | 150 mm | 10.0 μm | 80 Å | On request |
| SGE Analytical Science | ProteCol SILICA (Stainless Steel) | Normal-Phase | Silica | 2.1 mm | 150 mm | 5.0 μm | 120 Å | On request |
| RSTech | HECTOR-M Silica | Normal-Phase | Silica | 21.2 mm | 250 mm | 10.0 μm | 100 Å | On request |
| MicroSolv Technology Corporation | Cogent HPS Silica | Normal-Phase | Silica | 21.2 mm | 100 mm | 5.0 μm | 120 Å | On request |
| BISCHOFF | ProntoSIL 120-5-Si | Normal-Phase | Silica | 2.0 mm | 100 mm | 5.0 μm | 120 Å | On request |
| Welch Materials | Topsil Silica | Normal-Phase | Silica | 2.1 mm | 200 mm | 3.0 μm | 150 Å | On request |
| Orochem | Monitor Silica | Normal-Phase | Silica | 4.6 mm | 150 mm | 5.0 μm | 100 Å | On request |
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