LiChrospher? PAH is a highly efficient and selective stationionary phase especially designed for the high resolution separation of 16 PAH (polycyclic aromatic hydrocarbons) according to EPA 610 and 550, plus benzo(e)pyrene and perylene. This sorbent is packed into LiChroCART? 4-4 HPLC guard columns, to be used in connection with LiChroCART? HPLC cartridges, packed with LiChrospher? PAH. The connection is being accomplished by use of the manu-CART? NT cartrige holder (1.51486).