Compound specific carbon and hydrogen stable isotope analyses of volatile organic compounds in various emissions of combustion processes |
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| Institution: | 1. Department of Chemistry, WA-Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, John de Laeter Centre for Mass Spectrometry, Curtin University, GPO Box U1987, Perth, WA 6845, Australia;2. Alcoa World Alumina, Technology Delivery Group, PO Box 161, Kwinana, WA 6167, Australia;3. Department of Environment and Agriculture, Curtin University, PMB 1 Bussell Hwy., Margaret River, WA 6285, Australia;1. College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;2. Lanzhou Center for Oil and Gas Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Lanzhou 730000, China;1. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry (LAPC), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;2. CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110164, China;3. National Climate Center, China Meteorological Administration, Beijing 100081, China;4. John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, United States;5. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;6. Department of Chemistry, Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, United States;1. Institute of Groundwater Ecology, Helmholtz Zentrum München, Ingolstädter Landstraße 1, 85764 Neuherberg, Germany;2. Laboratoire d’Hydrologie et de Géochimie de Strasbourg (LHyGeS), UMR 7517, Université de Strasbourg/EOST, CNRS, 1 rue Blessig, 67084 Strasbourg Cedex, France;1. Geological Survey of Canada, Natural Resources Canada, Québec, QC G1K 9A9, Canada;2. INRS Eau Terre Environnement, Québec, QC G1K 9A9, Canada;3. Paleoecological Environmental Assessment & Research Lab (PEARL), Dept. of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada;4. Saskatchewan Ministry of Environment, Regina, SK S4S 5W6, Canada;5. Geological Survey of Canada, Natural Resources Canada, Calgary, AB T2L 2A7, Canada;1. Institute for Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Jülich GmbH, Jülich, Germany;2. Center for Atmospheric Chemistry and Chemistry Department, York University, Toronto, Canada;1. CAS Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China;2. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi’an 710075 Shaanxi, China;3. Anhui Department of Environmental Protection, Anhui Academy of Environmental Science, Hefei 230071, China |
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| Abstract: | This study presents carbon (δ13C) and hydrogen (δD) isotope values of volatile organic compounds (VOCs) in various emission sources using thermal desorption–gas chromatography–isotope ratio mass spectrometry (TD–GC–irMS). The investigated VOCs ranged from C6 to C10. Samples were taken from (i) car exhaust emissions as well as from plant combustion experiments of (ii) various C3 and (iii) various C4 plants. We found significant differences in δ values of analysed VOCs between these sources, e.g. δ13C of benzene ranged between (i) ?21.7 ± 0.2‰, (ii) ?27.6 ± 1.6‰ and (iii) ?16.3 ± 2.2‰, respectively and δD of benzene ranged between (i) ?73 ± 13‰, (ii) ?111 ± 10‰ and (iii) ?70 ± 24‰, respectively. Results of VOCs present in investigated emission sources were compared to values from the literature (aluminium refinery emission). All source groups could be clearly distinguished using the dual approach of δ13C and δD analysis. The results of this study indicate that the correlation of compound specific carbon and hydrogen isotope analysis provides the potential for future research to trace the fate and to determine the origin of VOCs in the atmosphere using thermal desorption compound specific isotope analysis. |
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