Click on “Download PDF” for the PDF version or on the title for the HTML version. If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options. Quantification of Odorants from TedlarTM BagsPublished by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org Citation: Paper number 024165, 2002 ASAE Annual Meeting . (doi: 10.13031/2013.10520) @2002Authors: Kevin M. Keener, Junhua Zhang, Robert W. Bottcher, Roberto D. Munilla Keywords: swine, air, volatile compounds, gas chromatography, TedlarTM bag Tri-packed sorbent tubes and TedlarTM bags were compared in characterizing nineteen major odorants found in artificial swine odor. The sorbent tubes were packed with Tenax-TATM, Carboxen 1000TM and Carbosieve SIIITM. Artificial swine odor was directly desorbed onto the tri-packed sorbent tube. For comparison, a 10L TedlarTM bag was filled with nitrogen gas and artificial swine odor. The TedlarTM bag was then desorbed onto the tri-packed sorbent tube, which was subsequently thermally desorbed into a gas chromatography (GC) system with a flame ionization detector (FID). The tri-packed sorbent tube demonstrated recoveries greater than 74% and detection limits less than 0.4 ng for all nineteen odorants. TedlarTM bags showed excellent recoveries for volatile fatty acids (VFAs), but less than 12% for indole and skatole. In addition, TedlarTM bags emitted acetic acid (~ 35%) and phenol (~ 27%). These results suggest that air samples collected in TedlarTM bags may bias olfactory analysis. (Download PDF) (Export to EndNotes)
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