Ultisil XB-Phenyl, Prep Cartridge: 5µm, 120Å, 21.2×10mm

Welch preparative guard column cartridges use the same packing as the preparative column, which can intercept some of the same polar substances in the sample and prevent them from contaminating and damaging the packing materials in the preparative column. 10×10mm cartridge holder: 00808-01116, 21.2×10mm cartridge holder: 00808-01106, 30×10mm cartridge holder: 00808-01117, 50×10mm cartridge holder: 00808-01110.

Ultisil XB-Phenyl column features a unique stationary phase bonding and double endcapping technology, ensuring superior peak symmetry. It offers distinct selectivity compared to straight-chain alkane, providing excellent separation for aromatic and polar compounds. It serves as an ideal replacement for most phenylpropyl-bonded silica columns on the market, with low UV and MS bleed.