Chromatography media

Chromatography media are the stationary-phase materials, columns and resins through which a liquid or gas sample is passed so its components separate by how strongly each interacts with the phase. The Questpair catalogue holds 177 listings of this type from 9 verified suppliers and distributors across 7 countries. Of those, 76 percent are used. New, used and refurbished items are listed, spanning packed HPLC columns, reversed-phase and preparative columns, and bulk ion exchange resins for laboratory separations. Prices run from EUR 9 to EUR 12.875. The media determine resolution, so the choice follows the separation a method already defines rather than the instrument it runs on.