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 |
|---|---|---|---|---|---|---|---|---|
| GL Sciences | Inertsil ODS-EP | Reversed-Phase | Silica/C18 | 1.5 mm | 33 mm | 5.0 μm | 100 Å | On request |
| Merck | Purospher® | Reversed-Phase | Silica/C18 | 3.0 mm | 125 mm | 5.0 μm | 90 Å | On request |
| LabHut | Cronusil-P C18 | Reversed-Phase | Silica/C18 | 7.0 mm | 150 mm | 5.0 μm | 120 Å | 516.71 |
| Sepax Technologies | Sepax BR 120 C18 | Reversed-Phase | Silica/C18 | 0.075 mm | 100 mm | 3.0 μm | 120 Å | On request |
| Teknokroma | Mediterranea Sea18 | Reversed-Phase | Silica/C18 | 3.0 mm | 100 mm | 3.0 μm | 100 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C18-300 | Reversed-Phase | Silica/C18 | 2.0 mm | 75 mm | 5.0 μm | 300 Å | On request |
| CERI | L-column2 ODS | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 3.0 μm | 120 Å | On request |
| KNAUER | Eurospher II | Reversed-Phase | Silica/C18 | 4.0 mm | 150 mm | 3.0 μm | 100 Å | On request |
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