INVESTIGATION OF MINERAL-WATER SAMPLES FO R ORGANIC-CHEMICAL MICROPOLLUTANTS USING ONLINE COUPLING OF SOLID-PHASE EXTRACTION AND GAS-CHROMATOGRAPHY MASS-SPECTROMETRY

73 samples of mineral, table and drinking water have been analyzed for organic chemical micropollutants by an automatic system of Online - s olid phase extraction - gas chromatography/mass spectrometry. Using ms scan acquisition trace components within the gc region of the alkanes CII-CUI can be identified and quantified above a limit of detection o f about 0.2 mu g/liter. Contaminants have been found in 50 samples (68 .5 per cent). In most cases it have been additives of plastic material like softeners and antioxidants. Migration studies have been run to c heck the influence of the bottle caps. Furtheron other micropollutants have been detected like 2-Ethylhexanoic acid, Tributylacetylcitrate, Benzophenone and traces of mineral oil (alkanes).