ISOLUTE® AL-B
Solid-phase extraction cartridge
A basic alumina polar sorbent commonly used to isolate compounds from non-polar solvent extracts.
ISOLUTE® AL-B 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.
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.
Specifications
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Chemical description
Alumina (basic)
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Sorbent type
Polar
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Average particle size
50-200 µm
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Pore diameter
120 Å
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Nominal moisture content
<0.1%
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Surface pH
10
Ordering information
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