High-Purity Silica-Based Reversed Phase SPE for Broad Analyte RetentionThe CleanX C18 SPE Cartridges are made from high-purity spherical silica gel, providing excellent surface uniformity, stable flow rates, and reproducible performance.With high bonding density and low phase loss, CleanX C18 ensures high recovery rates and consistent reproducibility across a wide range of analytical applications.This reversed-phase SPE cartridge is ideally suited for the desalting and cleanup of macromolecular samples—including blood, plasma, urine, proteins, DNA, and drug metabolites—as well as enrichment of organic compounds in aqueous samples.CleanX C18 cartridges deliver strong hydrophobic interactions between analytes and the C18 bonded silica surface, ensuring effective removal of salts and water-soluble interferences.The spherical silica structure maintains a uniform flow path, improving reproducibility and reducing backpressure.These properties make CleanX C18 the preferred choice for pharmaceutical, clinical, and environmental laboratories requiring accurate, high-yield extractions.