Welch Materials Ultisil XB-Diol Guard Cartridge, 3 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-03020

Welch guard cartridges use the same packing materials as the analytical column to ensure the best analysis results. When HPLC column ID<4.0mm, it is recommended to use a 2.1×10mm cartridge, while when column ID≥4.0mm, a 4.6×10mm cartridge is recommended. 2.1×10mm cartridge holder: 00808-01107, 4.6×10mm cartridge holder: 00808-01101 or 00808-01108(direct connect).

Welch guard cartridges for analytical columns are sold in packs, each pack containing 2 pieces (1 unit = 1 pack = 2 pcs).

Ultisil Diol is a normal-phase column offering superior stability and reproducibility compared to silica and amino columns, as well as enhanced selectivity and peak shape. Its unique bonding technology ensures stable stationary phase structure, while strict manufacturing processes guarantee excellent batch-to-batch reproducibility.