HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHIC ANALYSIS WITH ELECTROCHEMICALDETECTION FOR RESIDUES OF EXPLOSIVES IN WATER SAMPLES AROUND A FORMERAMMUNITION PLANT

Electrochemical detection (ED) in the oxidative and reductive mode was applied to the analysis of nitroaromatics, nitramines, aminoaromatics and nitrophenols in groundwater samples from the surroundings of a fo rmer ammunition plant. Settings for working potential and eluent compo sition were optimized in terms of detection limit, linearity and selec tivity. The results were compared with those obtained by UV detection and the advantages of combined UV-ED detection for the analysis of com plex samples are shown.