CLEAN-UP® Solid Phase Extraction Columns (SPE). Clean-Up® products are geared towards a variety of extractions. This line is composed of ion exchange, hydrophilic, hydrophobic, copolymeric and covalent solid phase extraction columns.
Clean-Up® Ion exchange Columns. Ion exchange interactions occur between a sorbent that carries a charge and a compound of opposite charge. Elution occurs by using a solvent to raise the pH above the pKa of the cationic group or to lower the pH below the pKa of the anion to disrupt retention.