Material: PP columns with PE filter elements. Further attractive products to complete your chromatography laboratory can be found on our Chromatography page! SPE polypropylene columns ROTI ® X Bond NH 2 Aminopropyl modified silica gel Polar weak anion exchanger Extraction of moderately polar and acidic compounds. Hydrogen bonding and weak anion exchange function, with pKa <9.8 Retains polar compounds, carbohydrates, dyes, lipids and mycotoxins Also used as a WAX (weak anion exchanger) to retain strong anions, such as sulfonic acids, from aqueous solutions, and as a scavenger for strong acids, chlorides, isocyanates and electrophiles Metal scavenger for Pd, Ru, Rh, Cu, Fe, Co and Ni
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