Record Display for the EPA National Library Catalog

RECORD NUMBER: 2 OF 3

OLS Field Name OLS Field Data
Main Title Pentachlorodibenzofurans: Synthesis, Capillary Gas Chromatography and Gas Chromatographic/Mass Spectrometric Characteristics.
Author Chittim, B. G. ; Madge, J. A. ; Safe, S. H. ;
CORP Author Wellington Labs., Guelph (Ontario). ;Texas A and M Univ., College Station. Dept. of Veterinary Physiology and Pharmacology.;Environmental Research Lab., Duluth, MN.
Publisher c1986
Year Published 1986
Report Number EPA-810995; EPA/600/J-86/538;
Stock Number PB90-265083
Additional Subjects Chlorine aromatic compounds ; Gas chromatography ; Mass spectroscopy ; Electron energy ; Furans ; Organic ions ; Molecular structure ; Reprints ; Chemical preparation
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB90-265083 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 12/03/1990
Collation 5p
Abstract
Twenty one (21) of the twenty eight (28) theoretically possible pentachlorodibenzofurans were synthesized and purified. Their retention indices were determined and were found to correlate well to those predicted using a previously developed mathematical model. Gas chromatographic/mass spectrometric (GC/MS) analysis of these compounds revealed that their electron-impact (EI) mass spectra were essentially identical with no significant variations due to positioning of the chlorines. Additional GC/MS experiments indicated that higher electron energies (70 eV as opposed to lower energies) were more suitable for analysis of these compounds due to higher molecular and fragment ion intensities.