Nexera UC Prep stationary phases have been specifically engineered for SFC separations paying close attention to bonding coverage, density and all factors leading to high capacity phases which exhibit excellent selectivity and peak shape. The column ideally suited for the retention and rapid separation of chemicals containing acidic groups. Chemicals that contain acidic groups and demonstrate the retention and separation capability that Nexera UC Prep Ethyl Pyridine II can deliver for the SFC chromatographer.