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 |
|---|---|---|---|---|---|---|---|---|
| Princeton Chromatography Inc. | PrincetonSPHER OMNI C18-60 | Reversed-Phase | Silica/C18 | 4.6 mm | 75 mm | 3.0 μm | 60 Å | On request |
| Thermo Fisher Scientific | Hypesil GOLD | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 3.0 μm | 175 Å | On request |
| Bonna-Agela Technologies | Durashell C18 (L) | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 3.0 μm | 150 Å | On request |
| ACE | ACE C18-HL | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 90 Å | On request |
| Imtakt | Presto FF-C18 | Reversed-Phase | Silica/C18 | 0.2 mm | 150 mm | 2.0 μm | Non-Porous Å | On request |
| BISCHOFF | ProntoSIL 300-10-C18 H | Reversed-Phase | Silica/C18 | 2.0 mm | 300 mm | 10.0 μm | 300 Å | On request |
| Phenomenex | Jupiter C18 | Reversed-Phase | Silica/C18 | 10.0 mm | 150 mm | 5.0 μm | 300 Å | On request |
| BISCHOFF | ProntoSIL 200-5-C18AQ | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 5.0 μm | 200 Å | On request |
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