
Column Protection
P/N: H00808-24039
Ultisil HILIC Amphion, Cartridge: 5µm, 120Å, 2.1×10mm, 2pcs
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...
P/N: H00808-04029
Ultisil HILIC Amphion, Cartridge: 5µm, 120Å, 4.6×10mm, 2pcs
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...
P/N: H00808-24429
Ultisil HILIC Amphion II, Semi-Prep Cartridge: 5µm, 120Å, 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...
P/N: 00808-23307
Topsil HILIC NH2, Cartridge: 3µm, 150Å, 2.1×10mm, 2pcs
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...
P/N: 00808-24307
Topsil HILIC NH2, Cartridge: 5µm, 150Å, 2.1×10mm, 2pcs
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...
P/N: 00808-03307
Topsil HILIC NH2, Cartridge: 3µm, 150Å, 4.6×10mm, 2pcs
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...
P/N: 00808-04307
Topsil HILIC NH2, Cartridge: 5µm, 150Å, 4.6×10mm, 2pcs
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...
P/N: U808-964-25
Boltimate HILIC, Cartridge: 2.7μm, 90Å, 2.1 ×5mm, 2pcs
Welch Boltimate guard cartridges use the same packing materials as does Boltimate column to ensure the best analysis results. When 2.0 <ID ≤ 3.0mm, it is recommended to use 2.1×5.0mm cartridges,...
P/N: U808-964-45
Boltimate HILIC, Cartridge: 2.7μm, 90Å, 4.0 ×5mm, 2pcs
Welch Boltimate guard cartridges use the same packing materials as does Boltimate column to ensure the best analysis results. When 2.0 <ID ≤ 3.0mm, it is recommended to use 2.1×5.0mm cartridges,...
P/N: 00808-01320
Prep Replacement O-Ring, for 21.2mm Filter/Guard Holder PTFE, 1pcs/pk
Prep Replacement O-Ring, for 21.2mm Filter/Guard Holder PTFE × 1
P/N: 00808-01321
Prep Replacement O-Ring, for 21.2mm Filter/Guard Holder FFKM, 1pcs/pk
Prep Replacement O-Ring, for 21.2mm Filter/Guard Holder FFKM × 1
P/N: 00808-01321-10
Prep Replacement O-Ring, for 10mm Filter/Guard Holder FFKM, 1pcs/pk
Prep Replacement O-Ring, for 10mm Filter/Guard Holder FFKM × 1
P/N: 00808-01321-30
Prep Replacement O-Ring, for 30mm Filter/Guard Holder FFKM, 1pcs/pk
Prep Replacement O-Ring, for 30mm Filter/Guard Holder FFKM × 1
P/N: H00808-23026
Ultisil XB-C18, Cartridge: 3µm, 300Å, 2.1×10mm, 2pcs
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...
P/N: H00808-03027
Ultisil XB-C18, Cartridge: 3µm, 300Å, 4.6×10mm, 2pcs
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...
P/N: H00808-13802
Ultisil XB-C18, Cartridge: 3.5µm, 120Å, 4.6×10mm, 2pcs
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...
P/N: H00808-13801
Ultisil XB-C18, Cartridge: 3.5µm, 300Å, 4.6×10mm, 2pcs
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...
P/N: H00808-24018
Ultisil XB-C18, Cartridge: 5µm, 300Å, 2.1×10mm, 2pcs
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...
P/N: H00808-24027
Ultisil LP-CN, Cartridge: 5µm, 120Å, 2.1×10mm, 2pcs
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...
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