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Talanta

Title:		Wet effluent diffusion denuder: The tool for determination of monoterpenes in forest
Author(s):		Krumal K; Mikuska P; Vecerova K; Urban O; Pallozzi E; Vecera Z;
Address:		"Institute of Analytical Chemistry of the CAS, v. v. i., Veveri 97, 60200 Brno, Czech Republic. Electronic address: krumal@iach.cz. Institute of Analytical Chemistry of the CAS, v. v. i., Veveri 97, 60200 Brno, Czech Republic. Global Change Research Centre of the CAS, v. v. i., Belidla 986/4a, 60300 Brno, Czech Republic. National Research Council, Institute of Agroenvironmental and Forest Biology, Via Guglielmo Marconi 2, 05010 Porano, Italy"
Journal Title:		Talanta
Year:		2016
Volume:		20160311
Issue:
Page Number:		260 - 267
DOI:		10.1016/j.talanta.2016.03.032
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"Three methods, i.e., the cylindrical wet effluent diffusion denuder (CWEDD)-GCMS, Tenax tubes-GCMS and Proton-Transfer-Reaction Time-of-Flight Mass Spectrometry (PTR-TOF-MS) were compared for the determination of monoterpenes in forest. While the on-line technique (PTR-TOF-MS) allows only for the measurement of sum of monoterpenes, both the off-line preconcentration techniques (CWEDD and Tenax tubes) are suitable for the determination of concentrations of individual monoterpenes due to subsequent analysis of samples by GCMS. The CWEDD-GCMS is the only method that allows sampling of individual monoterpenes with short time intervals of 2-5min. Monoterpenes are absorbed into a liquid (n-heptane), flowing down on the inner wall of the CWEDD, and then the collected liquid with monoterpenes is immediately taken away for the GCMS analysis, which minimizes time when collected monoterpenes are exposed to oxidants presented in the air during sampling. The limits of detection of CWEDD-GCMS are in the range 1-7pptv for individual monoterpenes"
Keywords:		Forests Heptanes Mass Spectrometry Monoterpenes/*analysis Biogenic volatile organic compounds Diffusion denuder Forest Monoterpene Proton-Transfer-Reaction Mass Spectrometry Tenax tubes;
Notes:		"MedlineKrumal, Kamil Mikuska, Pavel Vecerova, Kristyna Urban, Otmar Pallozzi, Emanuele Vecera, Zbynek eng Research Support, Non-U.S. Gov't Netherlands 2016/05/01 Talanta. 2016 Jun 1; 153:260-7. doi: 10.1016/j.talanta.2016.03.032. Epub 2016 Mar 11"