@article{ec1ab525fad94ef6b050fa6f8e22f3f7,
title = "Recovery of organic carbon from atmospheric particulate matter using soxhlet extraction with the benzene/methanol azeotrope",
abstract = "The extraction efficiency of the benzene/methanol azeotrope for organic carbon in atmospheric particulate matter was determined using a carbon types analyzer and also radio-labeled tracers and liquid scintillation spectroscopy. A twenty-four hour Soxhlet extraction with the azeotrope extracts 76 percent of the organic carbon, 15 percent of the elemental carbon, and 61 percent of the total carbon. Nonpolar and moderately polar organic compounds such as dotrlacontane, benzo(a)pyrene, and stearic acid are extracted with 95 percent recovery. Highly polar oxygenated species such as succinic acid are extracted with an efficiency of 82 percent. The Soxhlet extractor was more efficient than ultrasonication for the extraction of highly polar species.",
keywords = "Air Particulate Matter, Benzene/Methanol Azeotrope, Carbon Analysis, Extraction Recovery, Organic Carbon, Radio-Tracers, Soxhlet Extraction",
author = "Barkenbus, {B. D.} and Griest, {W. H.} and MacDougall, {C. S.} and Huntzicker, {J. J.} and Heyerdahl, {E. K.}",
note = "Funding Information: Research Laboratory, U.S. Environmental Protection Agency, and the U.S. Department of Energy through IAG No. 40-1014-79, EPA No. AD-89-F-2A073 under contract W-7405-eng-26 with the Union Carbide Corporation and through EPA Cooperative Agreement CR806274 with the Oregon Graduate Center. Funding Information: DISCLAIMER Although the research described in this article has been funded wholly or in part by the United States Environmental Protection Agency through contract AD-89-F-2A073 to the U.S. Department of Energy, and through Cooperative Agreement CR806274 with the Oregon Graduate Center, it has not been subjected to the Agencies' required peer and policy review and therefore does not necessarily reflect the views of the Agency and no official endorsement should be inferred. Funding Information: Analytical Chemistry Division1 Oak Ridge National Laboratory Oak Ridge, Tennessee 37830 Department of Environmental Science2 Oregon Graduate Center 19600 N.W. Walker Road Beaverton, Oregon 97006 ABSTRACT The extraction efficiency of the benzene/methanol azeotrope for organic carbon in atmospheric particulate matter was determined using a carbon types analyzer and also radio-labeled tracers and liquid scintillation spectroscopy. A twenty-four hour Soxhlet extraction with the azeotrope extracts 76 percent of the organic *Research sponsored jointly by the U. S. Environmental Protection Agency under Interagency Agreement No. 40-1014-79, EPA No. AD-89-F-2A073 and U. S. Department of Energy, under contract W-7405-eng-26 with the Union Carbide Corporation.",
year = "1983",
month = jan,
day = "1",
doi = "10.1080/10934528309375105",
language = "English (US)",
volume = "18",
pages = "297--310",
journal = "Journal of Environmental Science and Health. Part A: Environmental Science and Engineering",
issn = "0360-1226",
publisher = "Dekker",
number = "2",
}