DETERMINATION OF AROMATIC-AMINES AND PHENOLS IN ENVIRONMENTAL-SAMPLESBY SELECTIVE SPE ELUTION AND HPLC WITH AMPEROMETRIC DETECTION

The use of eluting solution having different pH and ionic strength tha t allow the selective solid phase extraction (SPE) of phenols and arom atic amines with both anionic and cationic characteristics in environm ental water samples is described. Phenols and aromatic amines have bee n determined by liquid chromatography coupled with amperometric detect ion. Elution steps and different recoveries of both classes of the com pounds considered in environmental samples are discussed. Different re coveries of phenols and aromatic amines in environmental samples, and detection limits are also discussed. Detection limits for considered c ompounds after SPE pre-treatment ranged from 15 ng/L to 440 ng/L.