GAS-CHROMATOGRAPHIC DETERMINATION OF AROMATIC-AMINES IN WATER SAMPLESAFTER SOLID-PHASE EXTRACTION AND DERIVATIZATION WITH IODINE II - ENRICHMENT

A procedure for the enrichment of aromatic amines via solid-phase extr action was developed. A HR-P phase based on styrene-divinylbenzene was used for the investigations, generally followed by derivatization wit h iodine and determination via GC-ECD. The recoveries of 53 aromatic a mines in a drinking water matrix at pH 9 were determined. Most aniline s showed relative recoveries between 80-120% with relative standard de viations of less than or equal to 5% at concentration levels between 1 0 and 20 mu g l(-1). The comparison with a wastewater matrix led to si milar results. The enrichment procedure was applied to real samples, e .g., samples of ammunition wastewater. (C) 1998 Elsevier Science B.V. All rights reserved.