Direct mass spectrometry of drinking water polluted with organic contaminations

CO2-laser evaporation/ KrF- laser ionization technique combined with reflectron time-of- flight mass-spectrometry have been used for analysis of drinking water polluted with phenol. The minimum phenol concentration level of 10-7% was detected. A considerable temperature decreasing down to 150 K of the laser evaporated molecules from the frozen water surface has been obtained.