ISOLUTE® AL-N

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-N

Neutral surface allows interactions of the aluminum metal center with compounds whose heteroatoms are electronegative (e.g. N, O, P, S), or whose highly aromatic structure make them 'electron rich'. The adsorbent can be useful for retaining amines and aromatic compounds from aqueous or non-aqueous solvents.