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 |
|---|---|---|---|---|---|---|---|---|
| BISCHOFF | ProntoSIL 120-3-C18AQ PEEK | Reversed-Phase | Silica/C18 | 4.0 mm | 200 mm | 3.0 μm | 120 Å | On request |
| Teknokroma | Tracer EXTRASIL ODS2 | Reversed-Phase | Silica/C18 | 10.0 mm | 250 mm | 5.0 μm | 80 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C18-60 | Reversed-Phase | Silica/C18 | 4.0 mm | 75 mm | 3.0 μm | 60 Å | On request |
| LabHut | Cronusil-M C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 5.0 μm | 80 Å | 289.36 |
| Welch Materials | Ultisil AQ-C18 | Reversed-Phase | Silica/C18 | 10.0 mm | 250 mm | 10.0 μm | 120 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C18-300 | Reversed-Phase | Silica/C18 | 21.2 mm | 100 mm | 10.0 μm | 300 Å | On request |
| BISCHOFF | ProntoSIL 200-3-C18AQ | Reversed-Phase | Silica/C18 | 4.0 mm | 100 mm | 3.0 μm | 200 Å | On request |
| SiliCYCLE | SiliaChrom XDB2 C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 50 mm | 5.0 μm | 100 Å | On request |
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