by Agilent Technologies
ZORBAX Extend-C18
Extend-C18 columns incorporate a unique patented bidentate silane, combined with a double-endcapping process that protects the silica from dissolution at high pH - up to pH 11.5. Columns are best applied for separations of compounds that are either (1) basic and have little or no retention at low or intermediate pHs, (2) more stable or more soluble at high pH, or (3) basic and show poor peak shape at low or intermediate pH.
| Vendor | Agilent Technologies | Pore size | 80 |
| Brand | ZORBAX Extend-C18 | Surface Area | 180 |
| Modifification | Silica/C18 | Endcapped | Yes |
| Mode | Reversed-Phase | Operating Temperature | 60 |
| Particle Size | pH stability from | 2.0 | |
| Length | pH stability to | 11.5 | |
| Internal Diameter |
| Vendor | Brand | Mode | Modification | Int. diam. | Length | Particles | Pores | Price |
|---|---|---|---|---|---|---|---|---|
| CHEMINDIA | CHEMSIL-ODS(2)-C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 100 mm | 3.0 μm | 100 Å | On request |
| Phenomenex | Synergi Hydro-RP | Reversed-Phase | Silica/C18 | 10.0 mm | 150 mm | 10.0 μm | 80 Å | On request |
| Phenomenex | Synergi Fusion-RP | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 4.0 μm | 80 Å | On request |
| Phenomenex | Luna C18(2) | Reversed-Phase | Silica/C18 | 4.0 mm | 20 mm | 3.0 μm | 100 Å | On request |
| Bonna-Agela Technologies | UHP Innoval C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 100 mm | 1.9 μm | 100 Å | On request |
| Imtakt | Cadenza 5CW-C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 30 mm | 5.0 μm | 300 Å | On request |
| BISCHOFF | ProntoSIL 60-5-C18 H | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 60 Å | On request |
| SiliCYCLE | SiliaChrom XT Fidelity C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 30 mm | 3.0 μm | 150 Å | On request |
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