Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/6363
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dc.contributor.authorallGrassa, F.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.authorallCapasso, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.authorallOliveri, Y.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.authorallSollami, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.authorallCarreira, P.; Instituto Tecnológico e Nuclear, Sacavém, Portugal-
dc.contributor.authorallCarvalho, M. R.; Faculdade de Ciências de Lisboa, Departamento de Geologia, CeGUL, Lisboa, Portugal-
dc.contributor.authorallMarques, J. M.; Instituto Superior Técnico, Lisboa, Portugal-
dc.contributor.authorallNunes, J. C.; Department of Geosciences, University of the Azores, Sao Miguel, Azores, Portugal-
dc.date.accessioned2010-12-15T11:39:11Z-
dc.date.available2010-12-15T11:39:11Z-
dc.date.issued2010-06-
dc.identifier.urihttp://hdl.handle.net/2122/6363-
dc.description.abstractA continuous-flow GC/IRMS technique has been developed to analyse δ15N values for molecular nitrogen in gas samples. This method provides reliable results with accuracy better than 0.15‰and reproducibility (1σ) within ±0.1‰ for volumes of N2 between 1.35 (about 56 nmol) and 48.9μL (about 2μmol). The method was tested on magmatic and hydrothermal gases as well as on natural gas samples collected from various sites. Since the analysis of nitrogen isotope composition may be prone to atmospheric contamination mainly in samples with low N2 concentration, we set the instrument to determine also N2 and 36Ar contents in a single run. In fact, based on the simultaneously determined N2/36Ar ratios and assuming that 36Ar content in crustal and mantle-derived fluids is negligible with respect to 36Ar concentration in the atmosphere, for each sample, the degree of atmospheric contamination can be accurately evaluated. Therefore, the measured δ15N values can be properly corrected for air contamination.en_US
dc.language.isoengen_US
dc.publisher.nameTaylor & Francisen_US
dc.relation.ispartofIsotopes in Environmental and Health Studiesen_US
dc.relation.ispartofseries2/46 (2010)en_US
dc.relation.isversionofhttp://hdl.handle.net/2122/5664en_US
dc.subjectArgon-36en_US
dc.subjectisotope measurement and techniqueen_US
dc.subjectnitrogen-15en_US
dc.subjectvolcanic and hydrothermal gasen_US
dc.titleNitrogen isotopes determination in natural gas: analytical method and first results on magmatic, hydrothermal and soil gas samplesen_US
dc.typearticle-
dc.description.statusPublisheden_US
dc.type.QualityControlPeer-revieweden_US
dc.description.pagenumber141–155en_US
dc.subject.INGV04. Solid Earth::04.04. Geology::04.04.12. Fluid Geochemistryen_US
dc.subject.INGV04. Solid Earth::04.07. Tectonophysics::04.07.06. Subduction related processesen_US
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.01. Gasesen_US
dc.subject.INGV04. Solid Earth::04.08. Volcanology::04.08.07. Instruments and techniquesen_US
dc.identifier.doi10.1080/10256016.2010.491914en_US
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dc.description.obiettivoSpecifico2.4. TTC - Laboratori di geochimica dei fluidien_US
dc.description.journalTypeJCR Journalen_US
dc.description.fulltextreserveden
dc.contributor.authorGrassa, F.-
dc.contributor.authorCapasso, G.-
dc.contributor.authorOliveri, Y.-
dc.contributor.authorSollami, A.-
dc.contributor.authorCarreira, P.-
dc.contributor.authorCarvalho, M. R.-
dc.contributor.authorMarques, J. M.-
dc.contributor.authorNunes, J. C.-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.departmentIstituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia-
dc.contributor.departmentInstituto Tecnológico e Nuclear, Sacavém, Portugal-
dc.contributor.departmentFaculdade de Ciências de Lisboa, Departamento de Geologia, CeGUL, Lisboa, Portugal-
dc.contributor.departmentInstituto Superior Técnico, Lisboa, Portugal-
dc.contributor.departmentDepartment of Geosciences, University of the Azores, Sao Miguel, Azores, Portugal-
item.grantfulltextrestricted-
item.fulltextWith Fulltext-
crisitem.author.deptInstituto Tecnológico e Nuclear, Estrada Nacional n° 10, 2686-953 Sacavém, Portugal-
crisitem.author.deptInstituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptUniversidade de Lisboa, Faculdade Ciências, Departamento Geologia, CeGUL, Ed.C6, 12 Campo Grande, 1749-016 Lisboa, Portugal-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.deptIstituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.author.parentorgIstituto Nazionale di Geofisica e Vulcanologia-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
crisitem.classification.parent04. Solid Earth-
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