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 |
|---|---|---|---|---|---|---|---|---|
| Tokyo Chemical Industry | Kaseisorb LC ODS 2000 | Reversed-Phase | Silica/C18 | 2.0 mm | 50 mm | 5.0 μm | 120 Å | 312.00 |
| Sepax Technologies | Sepax GP 120 C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 1.8 μm | 120 Å | On request |
| Higgins Analytical | TARGA C18 | Reversed-Phase | Silica/C18 | 20.0 mm | 100 mm | 5.0 μm | 120 Å | On request |
| BISCHOFF | ProntoSIL 60-10-C18 H | Reversed-Phase | Silica/C18 | 4.0 mm | 125 mm | 10.0 μm | 60 Å | On request |
| Higgins Analytical | PHALANX C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 150 mm | 5.0 μm | 100 Å | On request |
| BISCHOFF | ProntoSIL 200-10-C18 H | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 10.0 μm | 200 Å | On request |
| Princeton Chromatography Inc. | PrincetonSPHER C18-60 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 60 Å | On request |
| Dikma Technologies Inc. | Leapsil C18 | Reversed-Phase | Silica/C18 | 2.1 mm | 50 mm | 2.7 μm | 100 Å | 463.00 |
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