Simultaneous Chemical and Sensory Characterization of Volatile Organic Compounds and Semi-Volatile Organic Compounds Emitted from Swine Manure using Solid Phase Microextraction and Multidimensional Gas Chromatography-Mass Spectrometry-Olfactometry

Swine manure is associated with emissions of odor, volatile organic compounds (VOCs) and other gases that can affect air quality on local and regional scales. In this research, a solid phase microextraction (SPME) and novel multidimensional gas chromatography-mass spectrometry-olfactometry (MDGC-MS-...

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Bibliographic Details
Published in:Journal of environmental quality 2008-03, Vol.37 (2), p.521-534
Main Authors: Lo, Y.C.M, Koziel, J.A, Cai, L, Hoff, S.J, Jenks, W.S, Xin, H
Format: Article
Language:English
Subjects:
Air Pollutants - analysis
air pollution
Air quality
Animals
Chromatography
detection
Environmental Monitoring
Frequency distribution
Gas chromatography
Gas Chromatography-Mass Spectrometry
gas emissions
Gases
Humans
Manure
Manures
Mass spectrometry
Methods
odor emissions
Odorants - analysis
Odors
olfactometry
Organic Chemicals - analysis
Organic compounds
Pig manure
sampling
Sampling techniques
Smell
Solid Phase Microextraction
Swine
VOCs
Volatile organic compounds
Volatilization
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Summary:Swine manure is associated with emissions of odor, volatile organic compounds (VOCs) and other gases that can affect air quality on local and regional scales. In this research, a solid phase microextraction (SPME) and novel multidimensional gas chromatography-mass spectrometry-olfactometry (MDGC-MS-O) system were used to simultaneously identify VOCs and related odors emitted from swine manure. Gas samples were extracted from manure headspace using Carboxen/polydimethylsiloxane (PDMS) 85-μm SPME fibers. The MDGC-MS-O system was equipped with two columns in series with a system of valves allowing transfer of samples between columns (heartcutting). The heartcuts were used to maximize the isolation, separation, and identification of compounds. The odor impact of separated compounds was evaluated by a trained panelist for character and intensity. A total of 295 compounds with molecular weights ranging from 34 to 260 were identified. Seventy one compounds had a distinct odor. Nearly 68% of the compounds for which reaction rates with OH·radicals are known had an estimated atmospheric lifetime
ISSN:0047-2425
1537-2537
1537-2537
DOI:10.2134/jeq2006.0382