Determination of nitrophenols, diaminotoluenes, and chloroaromatics in ammunition wastewater
作者:
P. Mußmann,
R. Eisert,
K. Levsen,
G. Wünsch,
期刊:
Acta hydrochimica et hydrobiologica
(WILEY Available online 1995)
卷期:
Volume 23,
issue 1
页码: 13-19
ISSN:0323-4320
年代: 1995
DOI:10.1002/aheh.19950230104
出版商: WILEY‐VCH Verlag GmbH
关键词: Ammunition Wastewater;Gas Chromatography;Mass Spectrometry;Atomic Emission Detector;Extraction;Derivatization;Diaminotoluenes;Nitrophenols;Chloroaromatics
数据来源: WILEY
摘要:
AbstractMethods for the determination of three compound classes, i. e. diaminotoluenes, nitrophenols, and chloroaromatics in groundwater of a former ammunition plant are reported. Diaminotoluenes were extracted by discontinuous liquid/liquid‐, nitrophenols by continuous liquid/liquid‐extraction using dichloromethane, and chloroaromatics by solid‐phase extraction. These compound classes may be analyzed by gas chromatography (GC) or gas chromatography coupled to mass spectrometry (GC/MS) without derivatization or after derivatization with N‐methyl‐bis(trifluoroacetamide) (MBTFA) or heptafluorobutyric anhydride (HFBA) in the case of diaminotoluenes and HFBA or acetic anhydride in the case of nitrophenols. An atomic emission detector (AED) coupled to a gas chromatograph may be employed for the analysis of chloroaromatics. High selectivity can be achieved using the characteristic wavelengths of chlorine. A variety of these compounds were identified and quantified in a groundwater sample from the former ammunition plant Elsnig (Saxony, Germany). Concentrations were in the lower ppb range. Thus, dichlorobenzenes which may have been used as substituents at the end of World War II could be identified in groundwater samples at
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