Ultra Biphenyl HPLC Column, 3um, 100 x 2.1mm

Ultra HPLC Columns 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. 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. Particle Size: 3 µm or 5 µm, spherical Pore Size: 100 Å Carbon Load: 15% End-Cap: yes pH Range: 2.5 to 8 Temperature Limit: 80°C USP Phase: L11 Phase Category: phenyl Ligand Type: unique Biphenyl