Welch Materials Xtimate PS/DVB Guard Cartridge, 5 µm, 4.6 x 10 mm, 2 pk - 00808-04156

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).

Xtimate PS/DVB column utilizes polystyrene-divinylbenzene (PS/DVB) matrix, offering exceptional mechanical strength with a porous structure. Unlike traditional silica-based reversed-phase columns, this column has the distinct advantage of withstanding extreme pH conditions (1–14). It is particularly well-suited for the separation and purification of proteins, peptides, oligonucleotides, antibiotics, and small-molecule pharmaceuticals.