Gas Chromatographic/Matrix Isolation/Fourier Transform Infrared Spectra of the Laterally Chlorinated Dibenzo-p-Dioxins and Dibenzofurans

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Reference-quality gas chromatographic/matrix isolation/Fourier transform infrared spectra have been recorded for the following fifteen compounds, which collectively are referred to as the "laterally" chlorinated dibenzo-p-dioxins and dibenzofurans: 2,3,7,8-tetrachlorodibenzo-p-dioxin (2,3,7,8-TCDD); 1,2,3,7,8-pentachlorodibenzo-p-dioxin (1,2,3,7,8-PeCDD); 1,2,3,4,7,8-hexachlorodibenzo-p-dioxin (1,2,3,4,7,8-HxCDD); 1,2,3,6,7,8,-hexachlorodibenzo-p-dioxin (1,2,3,6,7,8-HxCDD); 1,2,3,7,8,9-hexachlorodibenzo-p-dioxin (1,2,3,7,8,9-HxCDD); 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin (1,2,3,4,6,7,8-HpCDD); 2,3,7,8-tetrachlorodibenzofuran (2,3,7,8-TCDF); 1,2,3,7,8-pentachlorodibenzofuran (1,2,3,7,8-PeCDF); 2,3,4,7,8-pentachlorodibenzofuran (2,3,4,7,8-PeCDF); 1,2,3,4,7,8-hexachlorodibenzofuran (1,2,3,4,7,8-HxCDF); 1,2,3,6,7,8-hexachlorodibenzofuran (1,2,3,6,7,8-HxCDF); 1,2,3,7,8,9-hexachlorodibenzofuran (1,2,3,7,8,9-HxCDF); 2,3,4,6,7,8-hexachlorodibenzofuran (2,3,4,6,7,8-HxCDF); 1,2,3,4,6,7,8-heptachlorodibenzofuran (1,2,3,4,6,7,8-HpCDF); and 1,2,3,4,7,8,9-heptachlorodibenzofuran (1,2,3,4,7,8,9-HpCDF). These spectra are discussed qualitatively and, for the laterally chlorinated dioxins, are compared to previously recorded gas-phase GC/FT-IR spectra. Estimates of the instrumental detection limits for these compounds, using matrix isolation GC/FT-IR spectroscopy, were found to fall in the mid-to-high picogram and low nanogram ranges.

Keywords: Chlorinated dibenzo-p-dioxins; Chlorinated dibenzofurans; Matrix isolation GC/FT-IR

Document Type: Research Article


Affiliations: 1: Department of Chemistry, University of Missouri, 5100 Rockhill Road, Kansas City, Missouri 64110 2: U.S. Environmental Protection Agency, Region VII Laboratory, 25 Funston Road, Kansas City, Kansas 66115

Publication date: November 1, 1989

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