Polymer based ASPEC® X-SAX solid phase extraction (SPE) cartridges contain a high-quality, polystyrene-divinylbenzene copolomer functionalized by a strong anion exchanger used for extraction of acidic drugs and metabolites (pKa 2 - 8) from biological fluids and tissues.

ASPEC Ready for Efficient Automation

ASPEC pre-capped cartridges are 'ASPEC instrument-ready', saving your time and money by eliminating manual capping. Thanks to automation that delivers consistent flow rates, these cartridges provide high loading capacity, accurate elution properties, and reproducible separation with low solvent usage. These cartridges are also available uncapped for manual extractions.