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 ODS-3 column is a universal C18 column compatible with 100% aqueous phases. It has minimal adsorption for both acidic and basic compounds, ensuring excellent peak shapes. Ideal for the separation and analysis of a wide range of compounds.
- Model: H00808-03031
- Manufactured by: Welch Materials

















