Correlations between polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in soils from western washington

Marco Natangelo, Emilio Benfenati, Giovanni DeGregorio, Roberto Fanelli, Giorgio Ciotti

Research output: Contribution to journalArticle

Abstract

Glyphosate (N-phosphonomethyl-glycine) herbicide samples were analysed qualitatively using gas chromatography-mass spectrometry (GC-MS) through derivatization with pentafluoropropionic anhydride plus trifluoroethanol. Besides the expected glyphosate perfluoroacetylated derivative, other compounds were observed and identified using this technique and MS alone with the direct inlet system (DIS). Three processes are probably involved in the formation of these products: 1) incomplete derivatization; 2) glyphosate degradation during the reaction; 3) traces of chemical impurities in the pesticide sample.

Original languageEnglish
Pages (from-to)225-232
Number of pages8
JournalToxicological and Environmental Chemistry
Volume38
Issue number3-4
DOIs
Publication statusPublished - Sep 1 1993

Keywords

  • gas chromatographic-mass spectrometric analysis
  • N-phosphonomethyl-glicine
  • perfluoroanhydrides
  • pesticide derivatization

ASJC Scopus subject areas

  • Environmental Chemistry
  • Health, Toxicology and Mutagenesis
  • Pollution
  • Environmental Science(all)
  • Toxicology

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