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The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications.
The general-purpose Restek C18 is a conventional monomeric octadecylsilane column suitable for analyses of a wide range of compounds from acidic through slightly basic.
Stationary Phase Category: C18, octadecylsilane (L1) Ligand Type: monomeric C18 Particle: 3 µm or 5 µm, spherical Pore Size: 100 Å Carbon Load: 20% End-Cap: yes Surface Area: 300 m2/g pH Range: 2.5 to 8 Maximum Temperature: 80 °C
