Welch Materials Ultisil F-C8 Guard Cartridge, 5 µm, 120 Å, 4.6 x 10 mm, 2 pk - H00808-04038

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 F-C8 is a fluorinated C8 reversed-phase column, where fluorine atoms replace hydrogen atoms on the RP stationary phase, containing a total of 17 fluorine atoms. It exhibits distinct selectivity from conventional C8 alkyl columns, offering strong retention for halogenated compounds and unique selectivity for non-halogenated polar compounds. It is an ideal choice when peak shape and separation performance on standard C8 columns are unsatisfactory.