Welch Materials Ultisil AQ-C18 UHPLC Guard Cartridge, 1.8 µm, 120 Å, 2.1 x 5 mm, 2 pk - HU808-207-25

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 AQ-C18 utilizes 1.8-μm high-purity silica and can withstand pressures up to 15,000 psi. It is designed to withstand 100%–0% aqueous environments. It features a polar group as the endcapping reagent, with moderate carbon loading and low alkyl chain bonding density, offering moderate retention. Compared to XB-C18, it has a weaker ability to adsorb impurities. This column is ideal for the analysis of polar samples, such as water-soluble vitamins, amino acids, and other hydrophilic compounds.