by Nacalai
Conventionally end-capped C18 columns still have many residual silanol groups on the silica surface of stationary phase that can form ionic bonds with basic compounds. The resulting peak tailing makes accurate quantification of analytes difficult, especially in trace analyses. COSMOSIL 3C18-EB with a better end-capping treatment offers improved peak shape and separation particularly for basic compounds.
| Vendor | Nacalai | Pore size | 120 |
| Brand | COSMOSIL 3C18-EB | Surface Area | 300 |
| Modifification | Silica/C18 | Carbon Load, % | 14.5 |
| Mode | Reversed-Phase | Endcapped | Yes |
| Particle Size | pH stability from | 2.0 | |
| Length | pH stability to | 10.0 | |
| Internal Diameter |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Thermo Fisher Scientific | Hypurity | Reversed-Phase | Silica/C18 | 2.1 mm | 20 mm | 3.0 μm | 190 Å | On request |
| Vertical Chromatography | VertiSep Integral C18 | Reversed-Phase | Silica/C18 | 3.2 mm | 100 mm | 2.6 μm | 100 Å | On request |
| Dionex | Acclaim 120 C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 150 mm | 5.0 μm | 120 Å | On request |
| CERI | L-column2 ODS (PEEK-sleeved) | Reversed-Phase | Silica/C18 | 0.075 mm | 150 mm | 3.0 μm | 120 Å | On request |
| Bonna-Agela Technologies | Venusil ASB C18 | Reversed-Phase | Silica/C18 | 50.0 mm | 150 mm | 10.0 μm | 150 Å | On request |
| Bonna-Agela Technologies | UHP ASB C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 30 mm | 1.9 μm | 100 Å | On request |
| BISCHOFF | ProntoSIL 300-5-C18 ace-EPS | Reversed-Phase | Silica/C18 | 3.0 mm | 125 mm | 5.0 μm | 300 Å | On request |
| Dikma Technologies Inc. | Spursil C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 150 mm | 5.0 μm | 100 Å | 577.00 |
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