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Gas chromatography and mass spectrometric determination of nitroaromatics in water

: Volmer, D.; Spiekermann, M.; Feltes, J.; Levsen, K.


Journal of Chromatography 518 (1990), Nr.1, S.21-40
ISSN: 0021-9673
ISSN: 0376-737X
ISSN: 0378-4355
Fraunhofer ITA ( ITEM) ()
analytical chemistry; analytische Chemie; Bestimmung; determination; extraction; Extraktion; gas chromatography; Gaschromatographie; mass spectrometry; Massenspektrometrie; Nitroaromat; nitroaromatic; nitroaromatic compound; nitroaromatische Verbindung; Wasser; water

Several methods for the extraction of nitroaromatic compounds from water were compared. High recoveries were achieved with discontinuous or continuous extraction of water with dichloromethane and by adsorption on Amberlite XAD-2, -4 and -8 resins (1:1:1) and elution with dichloromethane. The recoveries obtained with solid-phase extraction using cyano-, phenyl- or octadecyl-bonded phases varied, depending on the compounds studied, and were often low. Nitroaromatic compounds were determined by gas chromatography using an electron-capture or a chemiluminescence detector (thermal erergy analyser) and by mass spectrometry using electron impact and positive- and negative-ion chemical ionization.