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OneTwo Chromatography  |  SKU: spesax/psa-500-500-6

Ontwsep™ SAX/PSA SPE Cartridges

$198.00 USD


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Ontwsep™ SAX/PSA has equal amounts of SAX (upper layer) and PSA (lower layer), separated by a polyethylene sieve plate in the centre. PSA is an Npropylethylenediamine-bonded silica gel, whereas SAX is a quaternary ammonium salt-bonded silica gel. Both materials are designed to remove acidic interferences such as fatty acids and organic acids and are often used to detect pesticides in food.

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