Ultisil Columns
Ultisil is a broad selection of various stationary phases, each one offering familiar separation behavior in its classification. Upgrade to Ultisil to make it easy to demonstrate equivalence with the phase you might be using currently – plus, you get the Welch Advantages of Purity, Chemistry and Consistency.
Highlights
- Ultra-pure spherical porous silica, purity > 99.999%
- Tested and proven low levels of trace metal contamination
- Tenaciously-controlled bonding chemistry and end-capping
- Class-leading reproducibility, efficiency, symmetry, and lifetime
Ultisil HILIC Silica, 3.5μm, 4.6×150mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 2.1×50mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 2.1×100mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 2.1×150mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 4.6×100mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 4.6×150mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 4.6×200mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 4.6×250mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, 5μm, 4.6×300mm
Ultisil HILIC Silica uses high-purity silica gel with good mechanical stability as the matrix. The surface of the silica gel has been specially treated, so that the separation of strong polar subst...
Ultisil HILIC Silica, Cartridge: 3µm, 120Å, 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...
Ultisil HILIC Silica, Cartridge: 5µm, 120Å, 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...
Ultisil HILIC Silica, Cartridge: 3µm, 120Å, 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...
Ultisil HILIC Silica, Cartridge: 5µm, 120Å, 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...
Ultisil HILIC Silica, Cartridge: 10µm, 120Å, 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...
Ultisil UHPLC HILIC, 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...
Ultisil UHPLC HILIC, 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...
Ultisil HILIC Silica, 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...
Ultisil HILIC Silica, 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...
Ultisil HILIC Silica, Prep Cartridge: 5µm, 120Å, 30×10mm
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...
Ultisil Hilic Diol, 3μm, 2.1×100mm
Ultisil HILIC-Diol column is a hydropHILIC interaction column with a diol group bonded to silica gel. For strong polar compounds with poor retention on a reversed-phase column, it can be retained o...
Ultisil Hilic Diol, 3μm, 4.6×150mm
Ultisil HILIC-Diol column is a hydropHILIC interaction column with a diol group bonded to silica gel. For strong polar compounds with poor retention on a reversed-phase column, it can be retained o...
Ultisil Hilic Diol, 3μm, 2.1×150mm
Ultisil HILIC-Diol column is a hydropHILIC interaction column with a diol group bonded to silica gel. For strong polar compounds with poor retention on a reversed-phase column, it can be retained o...
Ultisil Hilic Diol, 3μm, 4.6×250mm
Ultisil HILIC-Diol column is a hydropHILIC interaction column with a diol group bonded to silica gel. For strong polar compounds with poor retention on a reversed-phase column, it can be retained o...
Ultisil Hilic Diol, 5μm, 2.1×50mm
Ultisil HILIC-Diol column is a hydropHILIC interaction column with a diol group bonded to silica gel. For strong polar compounds with poor retention on a reversed-phase column, it can be retained o...
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