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Columns and cartridges for gas, ion, HPLC, low-pressure LC, and flash chromatography; includes pre-packed and open columns, packing, guard columns and accessories, and other supplies for flash chromatography.
The LC-SCX cation-exchange columns have strongly acidic propylsulfonic acid groups and are used for separating cations. Adjust pH, ionic strength, and organic modifier concentration to control retention and selectivity.
Ascentis™ Express OH5 columns can be used for traditional normal phase separations using non-polar, totally organic mobile phases or for aqueous normal phase chromatography with the typical mobile phases for hydrophilic interactive liquid chromatography (HILIC) of basic, acidic, zwitterionic, or neutral compounds.
Available in a variety of stationary phases that function in normal and/or reverse phase. MilliporeSigma™ Hibar™ HPLC Columns, 250-4.6 come with customized packing (please specify packing material) and are 250mmL x 4.6mmI.D.
Thermo Scientific™ POROS™ GoPure™ pre-packed columns are for use in the screening of POROS affinity, ion exchange, and hydrophobic interaction chromatography (HIC) resins or for small scale purification.
The LC-CN phase is often used as a substitute for silica because it offers the advantages of a bonded phase (such as quick equilibration, and less sensitivity to small changes of the water content in the mobile phase).
A typical mobile phase used with normal-phase silica columns consists of a hydrocarbon solvent such as hexane or heptane, mixed with a relatively small percentage of more polar solvent.
Ascentis™ Express Guard Columns provide physical (filtration) and chemical protection for costly analytical columns without compromising the very high performance of Ascentis™ Express columns.
For fast, high-resolution separation and purification of proteins by ion-exchange using the quaternary amine stationary phase, use Thermo Scientific™ ProSwift™ SAX-1S LC Columns.