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Use of Solid Phase Microextraction (SPME) Fibers for Detecting Odorous Compounds in Ambient Air
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Paper number 024161, 2002 ASAE Annual Meeting . @2002
Authors: Sensen Lin, Donee Hawley, Dennis D. Schulte, David P. Billesbach
Keywords: Odors, SPME, solid phase micro-extraction, volatile fatty acids, animal manure
Solid Phase Microextraction (SPME) fibers were used to collect and measure downwind concentrations of short chain volatile fatty acids in a synthetic odor plume. Concentrations from SPME fibers exposed to ambient air movement are compared to those obtained with a controlled air speed (0.8 m/s). The influence of air speed and temperature, sampling time, and the diffusivity of odorous compounds are discussed. A controlled airflow device for use with SPME sampling does not appear to be necessary for outdoor ambient air sampling.