by Higgins Analytical
Keeping in mind that relative retention (α) is a much more powerful term than plates (N) in the expression for resolution in chromatography, choosing a column with different selectivity is almost always more helpful than just going to a smaller particle size when trying to improve a difficult separation. Our new HEAVY columns provide the highest retention of any column we manufacture.
| Vendor | Higgins Analytical | Internal Diameter | |
| Brand | HEAVY C18 | Pore size | 100 |
| Modifification | Silica/C18 | Surface Area | 450 |
| Mode | Reversed-Phase | Carbon Load, % | 22.0 |
| Particle Size | Endcapped | Yes | |
| Length |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| LabHut | Cronusil-S ODS-2 | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 3.0 μm | 80 Å | 288.55 |
| CHEMINDIA | CHEMSIL-ODS-C18 | Reversed-Phase | Silica/C18 | 2.0 mm | 250 mm | 3.0 μm | 100 Å | On request |
| Varian | Polaris C18-A (ChromSep) | Reversed-Phase | Silica/C18 | 4.6 mm | 100 mm | 5.0 μm | 180 Å | On request |
| Orochem | Reliasil C18 90 | Reversed-Phase | Silica/C18 | 21.2 mm | 100 mm | 10.0 μm | 90 Å | On request |
| Phenomenex | Prodigy ODS-2 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 5.0 μm | 150 Å | On request |
| Welch Materials | Topsil C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 30 mm | 3.0 μm | 150 Å | On request |
| KYA Technologies Corporation | HiQ Sil C18HS-100 | Reversed-Phase | Silica/C18 | 1.5 mm | 35 mm | 5.0 μm | 100 Å | On request |
| Imtakt | Cadenza CD-C18 HT | Reversed-Phase | Silica/C18 | 2.0 mm | 250 mm | 3.0 μm | 120 Å | On request |
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