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 |
|---|---|---|---|---|---|---|---|---|
| Bonna-Agela Technologies | Durashell RP | Reversed-Phase | Silica/C18 | 21.2 mm | 150 mm | 5.0 μm | 150 Å | On request |
| CERI | L-column2 ODS (PEEK-sleeved) | Reversed-Phase | Silica/C18 | 0.2 mm | 150 mm | 5.0 μm | 120 Å | On request |
| GRACE | Prevail C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 250 mm | 5.0 μm | 110 Å | On request |
| LabHut | Cronusil-S ODS-1 | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 5.0 μm | 80 Å | 263.45 |
| SiliCYCLE | SiliaChrom XDB1 C18 | Reversed-Phase | Silica/C18 | 20.0 mm | 100 mm | 5.0 μm | 100 Å | On request |
| PerkinElmer | Brownlee Analytical DB C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 5.0 μm | — | On request |
| ACE | ACE C18 | Reversed-Phase | Silica/C18 | 7.75 mm | 125 mm | 5.0 μm | 100 Å | On request |
| BISCHOFF | ProntoSIL 300-5-C18 ace-EPS PEEK | Reversed-Phase | Silica/C18 | 4.0 mm | 300 mm | 10.0 μm | 300 Å | On request |
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