Gas chromatographic/mass spectrometric analysis of specific isomers of polychlorodibenzofurans

Dorcas Fung, Robert K. Boyd, Stephen Safe, Brock G. Chittim

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The gas chromatographic/mass spectrometric characteristics of 26 congeners of polychlorinated dibenzofurans, previously characterized by specific synthetic routes and by standard spectroscopic techniques, have been evaluated. The electron impact mass spectra are not particularly isomer‐specific, though 2,3,7,8‐tetrachlorodibenzofuran is distinguishable on this basis from the three other tetrachloro isomers investigated in this work. Positive ion methane chemical ionization mass spectra do show a greater degree of isomer distinction, and are reasonably reproducible. Electron attachment negative ion spectral characteristics are also presented. Preliminary results on negative ion chemical ionization mass spectra, obtained using methane plus small amounts of oxygen as reagent gas, are reported.

Original languageEnglish (US)
Pages (from-to)247-253
Number of pages7
JournalBiological Mass Spectrometry
Issue number6
StatePublished - Jun 1985

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Medicine


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