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QCM sensor array for monitoring terpene emissions from odoriferous plants

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Abstract

An e-nose comprised of six sensing channels each coated with a molecularly imprinted polymer (MIP) selectively interacting with alpha-pinene, thymol, estragol, linalool, and camphor, respectively, was designed. When applying it for continuous online surveillance of terpenes emitted from basil and peppermint leaves as a criterion of freshness, it very appreciably reproduced the emanation patterns from these plants as shown by GC-MS. Chromatography yielded a variety of terpenes in a concentration range below 70 ppm. Trend lines obtained from the e-nose were corroborated by GC-MS and also appreciably fit the usual conduct of these plants as observable by the human nose.

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Authors and Affiliations

  1. Department of Analytical Chemistry and Food Chemistry, University of Vienna, Waehringer Strasse 38, 1090, Vienna, Austria

    Peter A. Lieberzeit, Abdul Rehman, Naseer Iqbal, Bita Najafi & Franz L. Dickert

Authors
  1. Peter A. Lieberzeit
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  2. Abdul Rehman
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  3. Naseer Iqbal
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  4. Bita Najafi
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  5. Franz L. Dickert
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Correspondence to Peter A. Lieberzeit.

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Lieberzeit, P.A., Rehman, A., Iqbal, N. et al. QCM sensor array for monitoring terpene emissions from odoriferous plants. Monatsh Chem 140, 947–952 (2009). https://doi.org/10.1007/s00706-009-0141-7

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  • DOI: https://doi.org/10.1007/s00706-009-0141-7

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