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Supercritical carbon dioxide extraction of polychlorinated biphenyls, polycyclic aromatic hydrocarbons, heteroatom-containing polycyclic aromatic hydrocarbons, and n-alkanes from polyurethane foam sorbents

Journal Article · · Anal. Chem.; (United States)
DOI:https://doi.org/10.1021/ac00182a019· OSTI ID:6256526
; ;
Supercritical fluid extraction (SFE) with CO/sub 2/ is a rapid alternative to liquid solvent extraction for the recovery of organic air pollutants collected on polyurethane foam (PUF) sorbent plugs. Quantitative recovery (> 95%) of polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs) ranging from naphthalene to perylene, several heteroatom-containing PAHs, and n-alkanes ranging from C/sub 12/ to C/sub 24/ was achieved with 10-20 min extractions. Class-selective extraction of n-alkanes versus PAHs resulted from the sequential extraction of the same PUF plug at 80 and 380 atm. Directly coupled SFE with gas chromatography (SFE-GC) allowed a PUF sample to be analyzed in < 1 hr including sample collection, extraction, analyte concentration, and GC separation. The application of SFE and coupled SFE-GC for the extraction and analysis of organic air pollutants that have been collected on PUF is demonstrated for cigarette smoke, diesel exhaust, and roofing tar volatiles.
Research Organization:
Univ. of North Dakota, Grand Forks (USA)
OSTI ID:
6256526
Journal Information:
Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 61:7; ISSN ANCHA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
500200 -- Environment
Atmospheric-- Chemicals Monitoring &amp; Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ADSORPTION
AIR
AIR POLLUTION
AIR POLLUTION MONITORING
AIR SAMPLERS
ALKANES
AROMATICS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHLORINATED AROMATIC HYDROCARBONS
DATA
EQUIPMENT
EXPERIMENTAL DATA
EXTRACTION
FLUIDS
GASES
HALOGENATED AROMATIC HYDROCARBONS
HYDROCARBONS
INFORMATION
MATERIALS
NUMERICAL DATA
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLLUTANTS
POLLUTION
POLYAMIDES
POLYCYCLIC AROMATIC HYDROCARBONS
POLYMERS
POLYURETHANES
QUANTITATIVE CHEMICAL ANALYSIS
SAMPLERS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SORPTION
SORPTIVE PROPERTIES
SUPERCRITICAL GAS EXTRACTION
SUPERCRITICAL STATE
SURFACE PROPERTIES
SYNTHETIC MATERIALS