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Reference type: Journal
Authors: Lieberzeit PA, Rehman A, Iqbal N, Najafi B, Dickert FL
Article Title: QCM sensor array for monitoring terpene emissions from odoriferous plants.
Publication date: 2009
Journal: Monatshefte für Chemie / Chemical Monthly
Volume: 140
Issue: (8)
Page numbers: 947-952.
DOI: 10.1007/s00706-009-0141-7

Abstract: 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
Author keywords: e-Nose, quartz crystal microbalance (QCM), molecular imprinting, Terpenes, Online monitoring

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