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 Sugar-Ca column is packed with calcium-modified polystyrene-divinylbenzene (PS/DVB) resin, primarily designed for the analysis of hydrolysates of sugar-based products, including beet, cane, starch, etc. It is well-suited in the separation of glucose, fructose, maltose, and maltodextrins from high-molecular-weight polymers in typical corn syrups. This column can also be used as a specialized column for mannitol analysis according to the Chinese Pharmacopoeia.