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 |
|---|---|---|---|---|---|---|---|---|
| KYA Technologies Corporation | HiQ Sil C18W - 120 | Reversed-Phase | Silica/C18 | 4.0 mm | 250 mm | 3.0 μm | 120 Å | On request |
| Dikma Technologies Inc. | Inspire C18 | Reversed-Phase | Silica/C18 | 30.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| LabHut | Cronusil-S ODS-1 | Reversed-Phase | Silica/C18 | 4.0 mm | 100 mm | 3.0 μm | 80 Å | 196.54 |
| LabHut | Cronusil-M C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 40 mm | 3.0 μm | 80 Å | 320.36 |
| BISCHOFF | ProntoSIL 60-10-C18 H | Reversed-Phase | Silica/C18 | 4.6 mm | 250 mm | 10.0 μm | 60 Å | On request |
| Phenomenex | Luna C18(2) | Reversed-Phase | Silica/C18 | 1.0 mm | 150 mm | 5.0 μm | 100 Å | On request |
| LabHut | Cronusil-L ODS-A | Reversed-Phase | Silica/C18 | 4.0 mm | 200 mm | 3.0 μm | 120 Å | 250.05 |
| Higgins Analytical | PHALANX C18 | Reversed-Phase | Silica/C18 | 4.0 mm | 50 mm | 3.0 μm | 100 Å | On request |
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