Welch Materials Ultisil Polar-RP UHPLC Guard Cartridge, 1.8 µm, 120 Å, 4.0 x 5 mm, 2 pk - HU808-215-45

Welch UHPLC guard cartridges use the same packing materials as does UHPLC column to ensure the best analysis results. When 2.0

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

Ultisil UHPLC Polar RP column is packed with 1.8 µm high-purity silica and can withstand pressures up to 15,000 psi. Being a reversed-phase column with selectivity distinct from conventional C18, it incorporates embedded polar groups, allowing the alkyl phase to remain solvated even in highly aqueous mobile phases (up to 100% water) without hydrophobic collapse. It offers enhanced retention and selectivity for polar compounds.