
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
P/N: H00265-31023
Ultisil LP-C3, 5μm, 3.0×150mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00265-31041
Ultisil LP-C3, 5μm, 4.6×150mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00265-31043
Ultisil LP-C3, 5μm, 4.6×250mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00265-33041
Ultisil LP-C3, 5μm, 300Å, 4.6×150mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00265-33043
Ultisil LP-C3, 5μm, 300Å, 4.6×250mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00265-33051
Ultisil LP-C3, 5μm, 300Å, 7.8×250mm
Ultisil LP-C3 column features large isopropyl side-chain groups, which protect the siloxane bonds on the silica surface, preventing hydrolysis under low-pH conditions. Designed with an unendcapped ...
P/N: H00808-24028
Ultisil LP-C3, 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: H00808-04050
Ultisil LP-C3, 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: H00259-31010
Ultisil LP-AQ, 5μm, 2.1×50mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31064
Ultisil LP-AQ, 5μm, 3.9×150mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31033
Ultisil LP-AQ, 5μm, 4.0×200mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31034
Ultisil LP-AQ, 5μm, 4.0×250mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31037
Ultisil LP-AQ, 5μm, 4.6×50mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31039
Ultisil LP-AQ, 5μm, 4.6×100mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31041
Ultisil LP-AQ, 5μm, 4.6×150mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31042
Ultisil LP-AQ, 5μm, 4.6×200mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31043
Ultisil LP-AQ, 5μm, 4.6×250mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31044
Ultisil LP-AQ, 5μm, 4.6×300mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00259-31054
Ultisil LP-AQ, 5μm, 6.0×250mm
Ultisil LP-Aq is a HPLC column designed to withstand 100%–0% aqueous environments. Featuring short-chain alkyl bonding technology, it can withstand strong acidic conditions, maintaining high stabil...
P/N: H00808-24026
Ultisil LP-Aq, 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: H00808-04042
Ultisil LP-Aq, 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: H02614-21100
Ultisil XB-SCX, 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...
P/N: H02614-21101
Ultisil XB-SCX, 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...
P/N: H02614-21102
Ultisil XB-SCX, 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...
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