SPE columns, BakerBond, Quaternary amine (N+)

Disposable PP columns are prepacked with selective reversed phase, biochromatography and ion exchange organosilanes bonded to silica gel absorbents and size exclusion gels. The highly surface-active sorbents, contained by two 20 µm PE frits, provide high capacity. This configuration allows extraction of compounds from sample solution volumes of a few hundred microliters to several milliliters.