Restek Ultra C4 5um 250 X 2.1mm

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.

Exceptionally stable C4 packing with high bonding coverage and base deactivation.

Less retention than C18 or C8 phases.

Stationary Phase Category: C4, butylsilane (L26)
Ligand Type: monomeric C4
Particle: 3 µm or 5 µm, spherical
Pore Size: 100 Å
Carbon Load: 9%
End-Cap: yes
Surface Area: 300 m²/g
pH Range: 2.5 to 8
Maximum Temperature: 80 °C