Welch Materials Ultisil XB-Phenyl UHPLC Guard Cartridge, 1.8 µm, 120 Å, 2.1 x 5 mm, 2 pk - HU808-203-25

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 XB-Phenyl is based on 1.8 µm high-purity silica and can withstand pressures up to 15,000 psi. It offers distinct selectivity compared to straight-chain alkyl phases, 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.