Oxygen‐18 measurement by continuous flow pyrolysis/isotope ratio mass spectrometry of vegetable oils
Identifieur interne : 000705 ( Istex/Checkpoint ); précédent : 000704; suivant : 000706Oxygen‐18 measurement by continuous flow pyrolysis/isotope ratio mass spectrometry of vegetable oils
Auteurs : O. Bréas [Italie] ; C. Guillou [Italie] ; F. Reniero [Italie] ; E. Sada [Italie] ; F. Angerosa [Italie] ; A. Rossmann [Allemagne]Source :
- Rapid Communications in Mass Spectrometry [ 0951-4198 ] ; 1998-02-27.
Abstract
Stable isotopes are now increasingly used for the control of the origin or authenticity of food products. Among these techniques, the measurement of the 18O content of organic compounds has rarely been carried out because of technical difficulties in the preparation and measurement of the samples. Recently a few laboratories have worked on the setting up of on‐line methods to allow easier access to the information that can be obtained from 18O/16O ratios. In this work, such a technique was developed by modifying an elemental analyser device for carrying out the pyrolysis of organic matter. This device is coupled to an isotope ratio mass spectrometer for 18O determination in the CO resulting from the pyrolysis of the compound to be analysed, with good results. The relationship between the 18O content of various oils and their geographical origins is discussed. © 1998 John Wiley & Sons, Ltd.
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DOI: 10.1002/(SICI)1097-0231(19980227)12:4<188::AID-RCM137>3.0.CO;2-7
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Angerosa</name><affiliation wicri:level="1"><country xml:lang="fr">Italie</country><wicri:regionArea>Istituto Sperimentale per la Elaiotecnica, Contrada ‘Fonte Umano’ 37, 65013 Città S. Angelo, Pescara</wicri:regionArea><wicri:noRegion>Pescara</wicri:noRegion></affiliation></author><author wicri:is="90%"><name sortKey="Rossmann, A" sort="Rossmann, A" uniqKey="Rossmann A" first="A." last="Rossmann">A. Rossmann</name><affiliation wicri:level="1"><country xml:lang="fr">Allemagne</country><wicri:regionArea>Lehrstul für Allgemeine Chemie und Biochemie, Freising</wicri:regionArea><wicri:noRegion>Freising</wicri:noRegion><wicri:noRegion>Freising</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Rapid Communications in Mass Spectrometry</title><title level="j" type="abbrev">Rapid Commun. Mass Spectrom.</title><idno type="ISSN">0951-4198</idno><idno type="eISSN">1097-0231</idno><imprint><publisher>John Wiley & Sons, Ltd.</publisher><pubPlace>Chichester, UK</pubPlace><date type="published" when="1998-02-27">1998-02-27</date><biblScope unit="volume">12</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="188">188</biblScope><biblScope unit="page" to="192">192</biblScope></imprint><idno type="ISSN">0951-4198</idno></series><idno type="istex">3656588256D092725748B87E292AD06710131B8E</idno><idno type="DOI">10.1002/(SICI)1097-0231(19980227)12:4<188::AID-RCM137>3.0.CO;2-7</idno><idno type="ArticleID">RCM137</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0951-4198</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Stable isotopes are now increasingly used for the control of the origin or authenticity of food products. Among these techniques, the measurement of the 18O content of organic compounds has rarely been carried out because of technical difficulties in the preparation and measurement of the samples. Recently a few laboratories have worked on the setting up of on‐line methods to allow easier access to the information that can be obtained from 18O/16O ratios. In this work, such a technique was developed by modifying an elemental analyser device for carrying out the pyrolysis of organic matter. This device is coupled to an isotope ratio mass spectrometer for 18O determination in the CO resulting from the pyrolysis of the compound to be analysed, with good results. The relationship between the 18O content of various oils and their geographical origins is discussed. © 1998 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Italie</li></country></list><tree><country name="Italie"><noRegion><name sortKey="Breas, O" sort="Breas, O" uniqKey="Breas O" first="O." last="Bréas">O. Bréas</name></noRegion><name sortKey="Angerosa, F" sort="Angerosa, F" uniqKey="Angerosa F" first="F." last="Angerosa">F. Angerosa</name><name sortKey="Guillou, C" sort="Guillou, C" uniqKey="Guillou C" first="C." last="Guillou">C. Guillou</name><name sortKey="Reniero, F" sort="Reniero, F" uniqKey="Reniero F" first="F." last="Reniero">F. Reniero</name><name sortKey="Reniero, F" sort="Reniero, F" uniqKey="Reniero F" first="F." last="Reniero">F. Reniero</name><name sortKey="Sada, E" sort="Sada, E" uniqKey="Sada E" first="E." last="Sada">E. Sada</name></country><country name="Allemagne"><noRegion><name sortKey="Rossmann, A" sort="Rossmann, A" uniqKey="Rossmann A" first="A." last="Rossmann">A. Rossmann</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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