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 Pursuit | Reversed-Phase | Silica/C18 | 1.0 mm | 150 mm | 3.0 μm | 180 Å | On request |
| Sepax Technologies | Sepax Bio 200 C18 | Reversed-Phase | Silica/C18 | 21.2 mm | 250 mm | 5.0 μm | 200 Å | On request |
| Orochem | Matrix AQ | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 3.0 μm | 100 Å | On request |
| Orochem | Reliasil C18 90 | Reversed-Phase | Silica/C18 | 3.0 mm | 100 mm | 5.0 μm | 90 Å | On request |
| BISCHOFF | ProntoSIL 120-3-C18 ace-EPS PEEK | Reversed-Phase | Silica/C18 | 4.0 mm | 200 mm | 3.0 μm | 120 Å | On request |
| ES Industries | Chromegabond 100 C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 10.0 μm | 100 Å | On request |
| Chromenta | Chromenta KB C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 50 mm | 3.0 μm | 120 Å | On request |
| Greyhound | GenSphere ODS1 120 | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 3.0 μm | 120 Å | On request |
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