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 |
|---|---|---|---|---|---|---|---|---|
| Agilent Technologies | Agilent Polaris | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 5.0 μm | 180 Å | On request |
| Agilent Technologies | ZORBAX Extend-C18 | Reversed-Phase | Silica/C18 | 2.0 mm | 150 mm | 1.8 μm | 80 Å | On request |
| Higgins Analytical | CLIPEUS C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 50 mm | 5.0 μm | 120 Å | On request |
| Luknova | Flex C18-120 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 3.0 μm | 120 Å | On request |
| Greyhound | Spheripak ODS1 80 | Reversed-Phase | Silica/C18 | 4.0 mm | 40 mm | 3.0 μm | 80 Å | On request |
| LabHut | Cronusil-M C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 3.0 μm | 80 Å | 392.70 |
| Varian | Pursuit C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 300 mm | 5.0 μm | 200 Å | On request |
| SGE Analytical Science | ProteCol C18 G (Stainless Steel) | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 5.0 μm | 120 Å | On request |
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