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 |
|---|---|---|---|---|---|---|---|---|
| SiliCYCLE | SiliaChrom XT Fidelity C18 | Reversed-Phase | Silica/C18 | 30.0 mm | 250 mm | 10.0 μm | 150 Å | On request |
| Teknokroma | Europa Peptide 120 C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 40 mm | 5.0 μm | 120 Å | On request |
| Agilent Technologies | ZORBAX Extend-C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 50 mm | 1.8 μm | 80 Å | On request |
| Vertical Chromatography | VertiSep AQS C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 100 mm | 5.0 μm | 120 Å | On request |
| BISCHOFF | ProntoSIL 200-10-C18 ace-EPS | Reversed-Phase | Silica/C18 | 3.0 mm | 200 mm | 10.0 μm | 200 Å | On request |
| GRACE | Vydac MS C18 | Reversed-Phase | Silica/C18 | 0.15 mm | 150 mm | 5.0 μm | 300 Å | On request |
| Imtakt | Cadenza CD-C18 HT | Reversed-Phase | Silica/C18 | 1.0 mm | 75 mm | 3.0 μm | 120 Å | On request |
| Chromenta | Chromenta KAQ C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 1.8 μm | 120 Å | On request |
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