| 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 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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. |
