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Ultra Biphenyl Columns (USP L11)

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.

particle size: 3 μm or 5 μm, spherical
pore size: 100 Å
carbon load: 15%
endcap: fully endcapped
pH range: 2.5 to 8
temperature limit: 80 °C
USP phase: L11
phase category: phenyl
ligand type: unique Biphenyl
properties:

  • Increased retention for dipolar, unsaturated, or conjugated solutes.
  • Enhanced selectivity when used with methanolic mobile phase.
  • Ideal for increasing sensitivity and selectivity in LC-MS analyses.

catalog#     particle sizelength idmodification units
3 μm
30 mm
    1.0 mm
ea.
3 μm
50 mm
    1.0 mm
ea.
3 μm
100 mm
    1.0 mm
ea.
3 μm
150 mm
    1.0 mm
ea.
3 μm
30 mm
    2.1 mm
ea.
3 μm
50 mm
    2.1 mm
ea.
3 μm
100 mm
    2.1 mm
ea.

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