Metabolites of alachlor in water: Identification by mass spectrometry and chemical synthesis

S. Mangiapan, E. Benfenati, P. Grasso, M. Terreni, M. Pregnolato, G. Pagani, D. Barcelo

Research output: Contribution to journalArticlepeer-review


This biodegradation study of alachlor in water was designed to assess the presence and the identity of metabolites. Alachlor was incubated in river water for 28 days. The pesticide and its transformation products were extracted by solid phase extraction and analyzed by gas chromatography/mass spectrometry. Selected samples were also analyzed by liquid chromatography/mass spectrometry. The disappearance of the pesticide was not significative, but several compounds were identified as alachlor metabolites. Nine compounds were confirmed by comparison with synthetic standards. One metabolite has never been reported. For seven molecules, formulae were presumed on the basis of spectrum interpretation and literature data.

Original languageEnglish
Pages (from-to)3637-3646
Number of pages10
JournalEnvironmental Science and Technology
Issue number12
Publication statusPublished - Dec 1997

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Environmental Engineering


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