Welch Materials Ultisil Plus C18 Guard Cartridge, 3.5 µm, 130 Å, 4.6 x 10 mm, 2 pk - H00808-03036

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 Plus series features exceptional anti-fouling capability, ensuring outstanding longevity while analyzing complex matrix samples.

Ultisil Plus C18 column has a lower specific surface area, slightly larger pore size, and lower carbon loading, resulting in weaker retention compared to XB-C59. The double end-capping process ensures excellent peak shape when analyzing acidic and basic polar compounds.