Determination of picogram per cubic meter concentrations of tetra- and pentachlorinated dibenzofurans and dibenzo-p-dioxins in indoor air by high-resolution gas chromatography/high-resolution mass spectrometry
An analytical method is presented for the collection and quantification of tetra- and pentachlorinated dibenzofurans (CDFs) and chlorinated dibenzo-p-dioxins (CDDs) in ambient air. This method is the first to deal with gaseous CDFs and CDDs as well as particulate-bound compounds and the first to validate and report the quantification of these compounds at 1 pg/m/sup 3/. Samples were collected with a glass fiber filter followed by silica gel contained in a removable extraction thimble in a housing made of Teflon. The samples were Soxhlet extracted with benzene, cleaned up with alumina and carbon adsorption liquid chromatography, and quantified with SP2330 capillary GC/mass profile high-resolution mass spectrometry. A complex isomer pattern of tetra- and penta-CDFs and tetra-CDDs including the 2,3,7,8-substituted tetras was found in air samples taken from a contaminated office building. Concentrations ranged from 0.23 pg/m/sup 3/ 2,3,7,8-tetra-CDD to 185 pg/m/sup 3/ for total tetra-CDFs. Chlorinated biphenylenes were also found.
- Research Organization:
- New York State Dept. of Health, Albany
- OSTI ID:
- 5162145
- Journal Information:
- Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 58:12; ISSN ANCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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54 ENVIRONMENTAL SCIENCES
AIR
AROMATICS
BENZOFURANS
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
CHROMATOGRAPHY
DATA
EXPERIMENTAL DATA
FLUIDS
FURANS
GAS CHROMATOGRAPHY
GASES
HALOGENATED AROMATIC HYDROCARBONS
HETEROCYCLIC COMPOUNDS
INFORMATION
MASS SPECTROSCOPY
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLE PREPARATION
SEPARATION PROCESSES
SPECTROSCOPY
TRACE AMOUNTS