by Welch Materials
| Vendor | Welch Materials | Length | |
| Brand | Ultisil XB-C4 | Internal Diameter | |
| Modifification | Silica/C4 | Pore size | 300 |
| Mode | Reversed-Phase | Surface Area | 320 |
| Particle Size |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| Princeton Chromatography Inc. | PrincetonSPHER C4-300 | Reversed-Phase | Silica/C4 | 50.0 mm | 250 mm | 5.0 μm | 300 Å | On request |
| SGE Analytical Science | ProteCol C4 H (PEEKsil) | Reversed-Phase | Silica/C4 | 0.15 mm | 50 mm | 3.0 μm | 300 Å | On request |
| Thermo Fisher Scientific | Hypesil GOLD | Reversed-Phase | Silica/C4 | 4.6 mm | 50 mm | 1.9 μm | 175 Å | On request |
| Welch Materials | Ultisil XB-C4 | Reversed-Phase | Silica/C4 | 3.0 mm | 250 mm | 3.0 μm | 300 Å | On request |
| Thermo Fisher Scientific | Hypurity | Reversed-Phase | Silica/C4 | 2.1 mm | 250 mm | 5.0 μm | 190 Å | On request |
| RESTEK | Viva | Reversed-Phase | Silica/C4 | 3.0 mm | 150 mm | 5.0 μm | 300 Å | On request |
| Fortis Technologies | FortisBIO C4 | Reversed-Phase | Silica/C4 | 0.075 mm | 100 mm | 5.0 μm | 300 Å | On request |
| KNAUER | Eurospher II | Reversed-Phase | Silica/C4 | 4.0 mm | 300 mm | 3.0 μm | 100 Å | On request |
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