Field air sampling and simultaneous chemical and sensory analysis of livestock odorants with sorbent tube GC-MS/olfactometry

Shicheng Zhang, Lingshuang Cai, Jacek A. Koziel, Steven Hoff, Charles Clanton, David Schmidt, Larry Jacobson, David Parker, Albert Heber

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Characterization and quantification of livestock odorants is one of the most challenging analytical tasks because odor-causing gases are very reactive, polar and often present at very low concentrations in a complex matrix of less important or irrelevant gases. The objective of this research was to develop a novel analytical method for characterization of the livestock odorants including their odor character, odor intensity, and hedonic tone and to apply this method for quantitative analysis of the key odorants responsible for livestock odor. Sorbent tubes packed with Tenax TA were used for field sampling. The automated one-step thermal desorption module coupled with multidimensional gas chromatography-mass spectrometry/olfactometry system was used for simultaneous chemical and odor analysis. Fifteen odorous VOCs and semi-VOCs identified from different livestock species operations were quantified. Method detection limits ranges from 40 pg for skatole to 3590 pg for acetic acid. In addition, odor character, odor intensity and hedonic tone associated with each of the target odorants are also analyzed simultaneously. We found that the mass of each VOCs in the sample correlates well with the log stimulus intensity. All of the correlation coefficients (R2) are greater than 0.74, and the top 10 correlation coefficients were greater than 0.90.

Original languageEnglish (US)
Title of host publicationOlfaction and Electronic Nose - Proceedings of the 13th International Symposium on Olfaction and Electronic Nose, ISOEN
Pages231-234
Number of pages4
DOIs
StatePublished - 2009
Event13th International Symposium on Olfaction and Electronic Nose, ISOEN - Brescia, Italy
Duration: Apr 15 2009Apr 17 2009

Publication series

NameAIP Conference Proceedings
Volume1137
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other13th International Symposium on Olfaction and Electronic Nose, ISOEN
CountryItaly
CityBrescia
Period4/15/094/17/09

Keywords

  • Field sampling
  • GC-O
  • Livestock
  • Odor

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