| Title: | On-site monitoring of biogenic emissions from Eucalyptus dunnii leaves using membrane extraction with sorbent interface combined with a portable gas chromatograph system |
| Author(s): | Liu X; Pawliszyn R; Wang L; Pawliszyn J; |
| Address: | "Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1" |
| ISSN/ISBN: | 0003-2654 (Print) 0003-2654 (Linking) |
| Abstract: | "Membrane extraction with sorbent interface, combined with a portable gas chromatograph system (MESI-Portable GC) for continuous on-line monitoring of biogenic volatile organic compounds (BVOCs) emissions (from leaves of Eucalytus dunnii in a greenhouse), is presented herein. A sampling chamber was designed to facilitate the extraction and identification of the BVOCs emitted by the Eucalytus dunnii leaves. Preliminary experiments, including; enrichment times, microtrap temperatures, stripping gas flow rates, and desorption temperatures were investigated to optimize experimental parameters. The main components of BVOCs released by the Eucalytus dunnii leaves were identified by comparing the retention times of peaks with those of authentic standard solutions. They were then confirmed with solid phase microextraction coupled with gas chromatography and mass spectrometry (SPME-GC-MS). BVOC emission profiles of [small alpha]-pinene, eucalyptol, and [gamma]-terpinene emitted by intact and damaged Eucalytus dunnii leaves were obtained. The findings suggest that the MESI-Portable GC system is a simple and useful tool for field monitoring changes in plant emissions as a function of time" |
| Keywords: | "Chromatography, Gas/methods Circadian Rhythm/physiology Eucalyptus/*metabolism Organic Chemicals/*metabolism Plant Leaves/*metabolism;" |
| Notes: | "MedlineLiu, Xinyu Pawliszyn, Richard Wang, Limei Pawliszyn, Janusz eng Research Support, Non-U.S. Gov't England 2004/01/23 Analyst. 2004 Jan; 129(1):55-62. doi: 10.1039/b311998j. Epub 2003 Dec 11" |
