ISOLUTE® AL-B

ISOLUTE® ALUMINAs (available as acidic, neutral or basic variants) are polar sorbents commonly used to isolate compounds from non-polar solvent extracts.

High activity, 50-200 µm particle size range alumina. The surface of the alumina can absorb molecules by interaction with the aluminum metal center, hydrogen bonding with surface hydroxyl groups, or by ion exchange if the surface carries a charge. The extent of these interactions can be enhanced by control of the surface pH with acidic, basic or neutral solutions.

ISOLUTE® AL-B

Washing this material with a basic solution results in a net negative charge. Cationic compounds are retained on the negatively charged surface  or by specific interactions with the metal center.