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 |
|---|---|---|---|---|---|---|---|---|
| CERI | L-column2 ODS | Reversed-Phase | Silica/C18 | 1.5 mm | 150 mm | 5.0 μm | 120 Å | On request |
| SGE Analytical Science | ProteCol C18 G (Stainless Steel) | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 5.0 μm | 300 Å | On request |
| Phenomenex | Ultracarb ODS (20) | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 3.0 μm | 90 Å | On request |
| Agilent Technologies | ZORBAX Eclipse XDB | Reversed-Phase | Silica/C18 | 1.0 mm | 100 mm | 1.8 μm | 80 Å | On request |
| Higgins Analytical | HAISIL 300 C18 | Reversed-Phase | Silica/C18 | 0.8 mm | 30 mm | 5.0 μm | 300 Å | On request |
| GL Sciences | Inertsil ODS-4 HP | Reversed-Phase | Silica/C18 | 2.1 mm | 100 mm | 3.0 μm | 100 Å | On request |
| Biotage | Resolux 120 C18 | Reversed-Phase | Silica/C18 | 20.0 mm | 100 mm | 4.5 μm | 120 Å | On request |
| Vertical Chromatography | VertiSep AQS C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 5.0 μm | 120 Å | On request |
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