HPLC Column: Ultisil Diol, 3μm, 3.9×250mm

Ultisil XB Normal Phase columns are based on ultra-pure ( purity > 99.999% ) type B spherical and totally porous silica. Bare silica, Diol, and NH₂ (Amine) are used for normal phase separations; with Diol and NH₂ often able to deliver more stable results. Diol and NH₂ have the added benefit of reduced sensitivity to the presence of water. Diol and NH₂ can also be used in reversed-phase.

Ultisil Diol Column is based on ultra-pure porous spherical silica bonded with 1,2-dihydroxypropyl functional group silica. Ultisil Diol is used in normal phase mostly, suitable for separation of peptides, proteins, polar molecules, and organic acids and its polymers. Ultisil Diol column is more stable than traditional normal phase columns, such as NH₂, SiO₂. Ultisil Diol column can also be used in reversed phase analysis.