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 |
|---|---|---|---|---|---|---|---|---|
| Dikma Technologies Inc. | Inspire C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 100 Å | 587.00 |
| Orochem | Reliasil C18 300 | Reversed-Phase | Silica/C18 | 4.6 mm | 50 mm | 5.0 μm | 300 Å | On request |
| Aapptec | Spirit Peptide | Reversed-Phase | Silica/C18 | 4.0 mm | 40 mm | 5.0 μm | 120 Å | On request |
| Higgins Analytical | HEAVY C18 | Reversed-Phase | Silica/C18 | 3.0 mm | 250 mm | 5.0 μm | 100 Å | On request |
| Vertical Chromatography | VertiSep GES C18 | Reversed-Phase | Silica/C18 | 4.6 mm | 150 mm | 3.0 μm | 120 Å | On request |
| SiliCYCLE | SiliaChrom dt C18 | Reversed-Phase | Silica/C18 | 30.0 mm | 100 mm | 5.0 μm | 100 Å | On request |
| MACHEREY-NAGEL | NUCLEODUR POLARTEC | Reversed-Phase | Silica/C18 | 2.0 mm | 150 mm | 3.0 μm | 110 Å | 502.00 |
| BISCHOFF | ProntoSIL 200-3-C18 H | Reversed-Phase | Silica/C18 | 4.6 mm | 125 mm | 3.0 μm | 200 Å | On request |
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