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 |
|---|---|---|---|---|---|---|---|---|
| CNW Technologies | Athena C18-BIO | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 5.0 μm | 300 Å | On request |
| BISCHOFF | ProntoSIL 300-10-C18 H | Reversed-Phase | Silica/C18 | 4.0 mm | 125 mm | 10.0 μm | 300 Å | On request |
| MACHEREY-NAGEL | NUCLEODUR POLARTEC | Reversed-Phase | Silica/C18 | 2.0 mm | 150 mm | 5.0 μm | 110 Å | 402.00 |
| AcuTech Scientific | C18 | Reversed-Phase | Silica/C18 | 0.05 mm | 50 mm | 1.7 μm | 120 Å | On request |
| Phenomenex | Aqua C18 | Reversed-Phase | Silica/C18 | 21.2 mm | 150 mm | 5.0 μm | 125 Å | On request |
| Teknokroma | Advantix ODS | Reversed-Phase | Silica/C18 | 4.0 mm | 100 mm | 5.0 μm | — | On request |
| BISCHOFF | ProntoSIL Enviro-PES 100-5-C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 250 mm | 5.0 μm | 100 Å | On request |
| Teknokroma | Tracer EXTRASIL ODS1 | Reversed-Phase | Silica/C18 | 4.0 mm | 150 mm | 3.0 μm | 80 Å | On request |
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