Column Protection
Xtimate Phenyl-Hexyl, Prep Cartridge: 5µm, 120Å, 21.2×10mm
Welch preparative guard column cartridges use the same packing as the preparative column, which can intercept some of the same polar substances in the sample and prevent them from contaminating and...
Xtimate UHPLC Phenyl-Hexyl, Cartridge: 1.8μm, 120Å, 2.1×5mm
Welch UHPLC guard cartridges use the same packing materials as does UHPLC column to ensure the best analysis results. When 2.0 <ID ≤3.0mm, it is recommended to use a 2.1×5.0mm cartridge, while w...
Xtimate UHPLC Phenyl-Hexyl, Cartridge: 1.8μm, 120Å, 4.0×5mm
Welch UHPLC guard cartridges use the same packing materials as does UHPLC column to ensure the best analysis results. When 2.0 <ID ≤3.0mm, it is recommended to use a 2.1×5.0mm cartridge, while w...
Topsil C18, Cartridge 3µm, 150Å, 2.1×10mm
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, whil...
Topsil C18, Cartridge 5µm, 150Å, 2.1×10mm
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, whil...
Topsil C18, Cartridge 3µm, 150Å, 4.6×10mm
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, whil...
Topsil C18, Cartridge 5µm, 150Å, 4.6×10mm
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, whil...
Topsil C8, Cartridge: 3µm, 150Å, 2.1×10mm
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, whil...
Topsil C8, Cartridge: 5µm, 150Å, 2.1×10mm
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, whil...
Topsil C8, Cartridge: 3µm, 150Å, 4.6×10mm
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, whil...
Topsil C8, Cartridge: 5µm, 150Å, 4.6×10mm
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, whil...
Topsil Phenyl-Hexyl, Cartridge: 3µm, 150Å, 2.1×10mm
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, whil...
Topsil Phenyl-Hexyl, Cartridge: 5µm, 150Å, 2.1×10mm
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, whil...
Topsil Phenyl-Hexyl, Cartridge: 3µm, 150Å, 4.6×10mm
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, whil...
Topsil Phenyl-Hexyl, Cartridge: 5µm, 150Å, 4.6×10mm
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, whil...
Topsil CN, Cartridge 5µm, 150Å, 2.1×10mm
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, whil...
Topsil CN, Cartridge 5µm, 150Å, 4.6×10mm
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, whil...
Topsil NH2, Cartridge 3µm, 150Å, 2.1×10mm
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, whil...
Topsil NH2, Cartridge 5µm, 150Å, 2.1×10mm
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, whil...
Topsil NH2, Cartridge 3µm, 150Å, 4.6×10mm
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, whil...
Topsil NH2, Cartridge 5µm, 150Å, 4.6×10mm
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, whil...
Topsil Silica, Cartridge 5µm, 150Å, 2.1×10mm
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, whil...
Topsil Silica, Cartridge 5µm, 150Å, 4.6×10mm
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, whil...
Topsil Phenyl-Hexyl, Semi-Prep Cartridge: 5µm, 150Å, 10×10mm
Welch preparative guard column cartridges use the same packing as the preparative column, which can intercept some of the same polar substances in the sample and prevent them from contaminating and...
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