Recovery of organic carbon from atmospheric particulate matter using soxhlet extraction with the benzene/methanol azeotrope*
作者:
B. D. Barkenbus,
W. H. Griest,
J. J. Huntzicker,
E. K. Heyerdahl,
C. S. MacDougall,
期刊:
Journal of Environmental Science and Health . Part A: Environmental Science and Engineering
(Taylor Available online 1983)
卷期:
Volume 18,
issue 2
页码: 297-310
ISSN:0360-1226
年代: 1983
DOI:10.1080/10934528309375105
出版商: Taylor & Francis Group
关键词: Soxhlet Extraction;Benzene/Methanol Azeotrope;Organic Carbon;Extraction Recovery;Radio‐Tracers;Carbon Analysis;Air Particulate Matter.
数据来源: Taylor
摘要:
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 dotriacontane, 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.
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