CDS Empore C8-SD solid phase extraction (SPE) cartridges are packed with C8 bonded silica media and available in both single-layer and 2-layer configurations. Featuring particle sizes of 50 μm, they provide excellent retention capacity and recovery for moderate non-polar analyte extractions. End-capped to reduce polar interactions, these cartridges are ideal for processing a variety of sample volumes in environmental and chemical analyses.