Ultra Biphenyl HPLC Prep Column, 5 µm, 250 x 21.2 mm

• Easy scale-up from Restek analytical columns.
• Popular bonded phases.

Restek makes it easy to scale up your separations. We offer a wide range of semipreparative and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases on a 5 ?m spherical silica. Other stationary phases are also available—please call and inquire.

Since 2005, the Restek Biphenyl has offered a greater degree of dispersion than conventional phenyls and a greater degree of polarizability than phenyl hexyls, creating higher selectivity and a greater range of usability. Because of these heightened interactions, this column shows substantial increases in retention—especially for dipolar, unsaturated, or conjugated solutes—and enhanced orthogonal selectivity when using methanol mobile phases. It is ideal for increasing sensitivity and selectivity in LC-MS analyses.

Stationary Phase Category: phenyl (L11)
Ligand Type: unique Biphenyl
Particle: 5 µm, spherical
Pore Size: 100 Å
Carbon Load: 15%
End-Cap: yes
Surface Area: 300 m²/g
pH Range: 2.5 to 8
Maximum Temperature: 80 °C

Features & Benefits

Our broadest selection of stationary phases, including unique phases. High-density bondings for maximum retention. High-purity, Type-B silica gives excellent peak shapes for a wide range of compounds.

Note: We strongly recommend ordering a semi-prep or prep column only after evaluating the desired separation on an equivalent analytical-scale column. Because we cannot reuse a column or the silica it contains once it has left our facility, we cannot accept returns of large-scale columns.