The CleanX AI-A SPE Cartridges feature a medium cation-exchange polar sorbent with pH 3–4.5, combining ion-exchange and polar adsorption.A specialized surface deactivation ensures non-interference with sensitive analytes, making it ideal for controlled cation-exchange separations in pharmaceutical, biochemical, and environmental samples. CleanX AI-A SPE Cartridges provide medium cation-exchange capability with strong polarity for charged compound extraction and biochemical sample cleanup.