Macherey-Nagel SPE Cartridge, CHROMABond SA/SiOH 3 ml, 500/500 mg, PP, 50/PAK

Special SPE Phase of PCBs from waste oil. Combination of strongly acidic cation exchanger (SA) based on silica gel with benzenesulfonic acid modification for removal of ionic compounds and unmodified silica (SiOH) for removal of polar compounds.