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 XB-SAX, 5μm, 4.6×150mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 5μm, 4.6×200mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 5μm, 4.6×250mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 5μm, 7.8×300mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 10μm, 4.0×250mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 10μm, 4.6×50mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 10μm, 4.6×250mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 10μm, 4.6×150mm
Ultisil XB-SAX Column are silica based column with high resolution and high efficiency. Ultisil XB-SAX is a polar bonded phase, consisting of an ammonium-functionalized silane. Organic modifiers su...
Ultisil XB-SAX, 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 XB-SAX, 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 XB-SAX, 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 XB-SAX, 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 XB-SAX, 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 XB-SAX, Prep Cartridge: 10µm,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 PAH, 5μm, 10×100mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 10×150mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 10×250mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 10×300mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 21.2×50mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 21.2×150mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 21.2×250mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 30×150mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 30×250mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
Ultisil PAH, 5μm, 50×150mm, 120Å
Welch preparative column uses the same packing materials as does analytical column, to ensure the best reproducibility of analysis and preparative scale. Special packing technique and stainless mod...
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