HPLC Column Ultra Aromax, 100Å, 5 µm, 250 x 10 mm

Ultra Aromax Columns (USP L11)

particle size: 3 μm or 5 μm, spherical
pore size: 100 Å,
carbon load: 17%,
end-cap: yes
pH range: 2.5 to 8
temperature limit: 80 °C
USP phase code: L11
phase category: phenyl
ligand type: proprietary phenyl ligand

Ultra Aromax is a unique reversed-phase material that exhibits extreme retention and selectivity for aromatic and/or unsaturated compounds. This column is a great alternative to our Biphenyl phase when increased retention is required, and it’,s an excellent choice for gradient LC-MS analyses when conventional columns are not giving adequate retention or selectivity.

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.

Note: We strongly recommend that you only order a semi-preparative or preparative column once you have evaluated the desired separation on an equivalent column on an analytical scale.
Because we cannot reuse a column or the silica within it once it leaves our facility, we cannot accept returns of large columns.