by WATERS
Reproducibility is a number one priority in Symmetry® columns. These columns are engineered with high purity raw materials, tightly controlled manufacturing processes and column packing procedures that provide you with the best, most reproducible HPLC columns available.
Narrow column specifications help you to achieve reproducible results. The surface coverage requirements of Symmetry Columns are the tightest specifications in the industry, resulting in minimal shifts in resolution and more reproducibility from batch-to-batch and column-to-column.
Symmetry C18 columns feature trifunctionally bonded C18 ligands on a high purity base-deactived silica. Symmetry columns have the tightest column specifications in the industry giving resulting highly reproducible chromatographic results.
| Vendor | WATERS | pH stability from | 2.0 |
| Brand | Symmetry C18 | pH stability to | 8.0 |
| Modifification | Silica/C18 | Max Pressure | 6000 |
| Mode | Reversed-Phase | Surface Area | 330 |
| Particle Size | Carbon Load, % | 19.0 | |
| Length | Endcapped | Yes | |
| Internal Diameter | Operating Temperature | 45 | |
| Pore size | 100 |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| GRACE | Alltima HP C18 AQ | Reversed-Phase | Silica/C18 | 4.6 mm | 10 mm | 3.0 μm | 100 Å | On request |
| BISCHOFF | ProntoSIL 120-5-C18AQ plus | Reversed-Phase | Silica/C18 | 4.0 mm | 100 mm | 5.0 μm | 120 Å | On request |
| GL Sciences | InertSustain C18 | Reversed-Phase | Silica/C18 | 1.0 mm | 75 mm | 5.0 μm | 100 Å | On request |
| GL Sciences | InertSustain C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 100 mm | 5.0 μm | 100 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C18-ES-100 | Reversed-Phase | Silica/C18 | 10.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| KNAUER | Eurosil Bioselect | Reversed-Phase | Silica/C18 | 2.0 mm | 30 mm | 5.0 μm | 300 Å | On request |
| Welch Materials | Ultisil AQ-C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 10.0 μm | 120 Å | On request |
| Dionex | Acclaim 120 C18 | Reversed-Phase | Silica/C18 | 0.1 mm | 250 mm | 5.0 μm | 120 Å | On request |
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