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<article language="en">
	<journal>
		<journal_title>Atmospheric Measurement Techniques Discussions</journal_title>
		<journal_url>www.atmos-meas-tech-discuss.net</journal_url>
		<eissn>1867-8610</eissn>
		<volume_number>3</volume_number>
		<issue_number>4</issue_number>
		<publication_year>2010</publication_year>
	</journal>
	<doi>10.5194/amtd-3-3345-2010</doi>
	<article_url>http://www.atmos-meas-tech-discuss.net/3/3345/2010/</article_url>
	<abstract_html>http://www.atmos-meas-tech-discuss.net/3/3345/2010/amtd-3-3345-2010.html</abstract_html>
	<fulltext_pdf>http://www.atmos-meas-tech-discuss.net/3/3345/2010/amtd-3-3345-2010.pdf</fulltext_pdf>
	<start_page>3345</start_page>
	<end_page>3381</end_page>
	<publication_date>2010-08-09</publication_date>
	<article_title content_type="html">Quantitative and enantioselective analysis of monoterpenes from plant chambers and in ambient air using SPME</article_title>
	<authors>
		<author numeration="1" affiliations="1,2">
			<name>N. Yassaa</name>
			<email>nyassaa@usthb.dz</email>
		</author>
		<author numeration="2" affiliations="1">
			<name>T. Custer</name>
		</author>
		<author numeration="3" affiliations="1">
			<name>W. Song</name>
		</author>
		<author numeration="4" affiliations="3">
			<name>F. Pech</name>
		</author>
		<author numeration="5" affiliations="3">
			<name>J. Kesselmeier</name>
		</author>
		<author numeration="6" affiliations="1">
			<name>J. Williams</name>
		</author>
	</authors>
	<affiliations>
		<affiliation numeration="1" content_type="html">Air Chemistry Department, Max-Planck Institute for Chemistry, J.J. Becher Weg 27, 55020 Mainz, Germany</affiliation>
		<affiliation numeration="2" content_type="html">Faculty of Chemistry, University of Sciences and Technology Houari Boumediene, U.S.T.H.B., B.P. 32 El-Alia, Bab-Ezzouar, 16111 Algiers, Algeria</affiliation>
		<affiliation numeration="3" content_type="html">Biogeochemistry Department, Max-Planck Institute for Chemistry, J.J. Becher Weg 27, 55020 Mainz, Germany</affiliation>
	</affiliations>
	<abstract content_type="html">A solid-phase microextraction (HS-SPME) and gas chromatography/mass
      spectrometry (GC/MS) system has been developed for quantifying
      enantiomeric and nonenantiomeric monoterpenes in plant chamber studies
      and ambient air. Performance of this system was checked using
      a capillary diffusion system to produce monoterpene standards. The
      adsorption efficiency, competitive adsorption and chromatographic
      peak resolution of monoterpene enantiomer pairs were compared
      for three SPME fibre coatings: 75 μm Carboxen-PDMS
      (CAR-PDMS), 50/30 μm,
      divinylbenzene-carboxen-polydimethylsiloxane (DVB-CAR-PDMS)
      and 65 μm divinylbenzene-polydimethyl-siloxane
      (DVB-PDMS). Key parameters such as the linearity and reproducibility
      of the SPME system have been investigated in this work. The best
      compromise between the enantiomeric separation of monoterpenes and
      competitive adsorption of the isoprenoids on the solid SPME fibre
      coating was found for DVB-PDMS fibres. The optimum conditions using
      DVB-PDMS fibres were applied to measure the exchange rates of
      monoterpenes in the emission of &lt;i&gt;Quercus ilex&lt;/i&gt; using
      a laboratory whole plant enclosure under light and dark conditions, as
      well as in ambient air. With 592 and 223 ng m&lt;sup&gt;−2&lt;/sup&gt; s&lt;sup&gt;−1&lt;/sup&gt;,
      respectively, &amp;beta;-myrcene and limonene were the predominant
      monoterpenes in the emission of &lt;i&gt;Q. ilex&lt;/i&gt;. These values were
      closely comparable to those obtained using a zNose and cartridge
      GC-FID systems.</abstract>
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</article>

