DETERMINATION OF POLYCYCLIC AROMATIC-HYDROCARBONS FROM BITUMEN CONCRETE ROADS IN DRAINAGE WATER BY MICROEXTRACTION, LARGE-VOLUME SAMPLING AND GAS-CHROMATOGRAPHY MASS-SPECTROMETRY WITH SELECTED-ION MONITORING

A method for the determination of ppt levels of polycyclic aromatic hy drocarbons in drinking and drainage water based on microextraction, la rge-volume injection of a toluene extract into a split-splitless injec tor and gas chromatography-mass spectrometry with selected ion monitor ing is described. The elimination of solvent from the target analytes by controlling the temperature of the injector equipped with a liner p acked with Chromosorb W coated with OV-1 was achieved.