owerful Mixed-Mode Strong Anion Exchange for Acidic Compound Cleanup.The CleanX MAX SPE Cartridges utilize a polymeric strong anion exchange sorbent with mixed-mode functionality, designed to provide exceptional extraction and purification performance for acidic analytes in complex biological, environmental, and food matrices.Engineered to withstand a wide pH range (0–14), CleanX MAX combines ionic interaction with hydrophobic retention, enabling selective binding and effective cleanup of strongly acidic compounds, metabolites, and organic acids from diverse sample types.