ISOLUTE® AL-N
Solid-phase extraction cartridge
A neutral alumina polar sorbent commonly used to isolate compounds from non-polar solvent extracts.
ISOLUTE® AL-N is a high activity, 50-200 µm particle size range alumina. The surface of the alumina can absorb molecules by interaction with the aluminium metal centre, hydrogen bonding with surface hydroxyl groups, or by ion exchange if the surface carries a charge.
Neutral surface allows interactions of the aluminium metal centre 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.
Specifications
-
Chemical description
Alumina (neutral)
-
Sorbent type
Polar
-
Average particle size
50-200 µm
-
Nominal moisture content
<0.1%
-
Pore diameter
120 Å
-
Surface pH
7.5
Ordering information
Related products
ISOLUTE® AL-A | Solid-phase extraction cartridge
An acidic alumina polar sorbent commonly used to isolate compounds from non-polar solvent extracts.
ISOLUTE® AL-B | Solid-phase extraction cartridge
A basic alumina polar sorbent commonly used to isolate compounds from non-polar solvent extracts.
ISOLUTE® DIOL | Solid-phase extraction cartridges and plates
A polar sorbent primarily used to isolate polar analytes from non-polar matrices using hydrogen bonding interactions.
ISOLUTE® CN | Solid-phase extraction cartridges and plates
A weakly retentive polar sorbent with dipole-dipole interactions. Used for analytes that cannot be easily eluted form other polar sorbents.