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dc.contributor.authorPollien, Philippe-
dc.contributor.authorLindinger, Christian-
dc.contributor.authorAli, Santo-
dc.contributor.authorYeretzian, Chahan-
dc.date.accessioned2018-04-23T09:18:02Z-
dc.date.available2018-04-23T09:18:02Z-
dc.date.issued2003-
dc.identifier.urihttp://www.ionicon.com/sites/default/files/uploads/doc/contributions_ptr_ms_Conference_1.pdfde_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/5466-
dc.description.abstractOne of the outstanding properties of PTR-fMlS is that it allows for a direct and absolute quantification of volatile organic compounds in the gas-phase. Here we examine this on a model sample of known concentration. The head space of an ethylbutyrate solution is stripped for 14 hours with a flow of 500 sccm/min, until the solution is completely depleted from ethylbutyrate. The measured PTR-MS count-rate is transformed into g/min of released ethylbutyrate. The cumulated amount turns out to be within a few percent of the initial 1000 microgram present in the solution. We then apply the method to in-mouth aroma release of ethylbutyrate to quantity breath-by-breath the quantity exhaled through the nose. Currently several experimental parameters that are not fully taken into consideration may affect a direct quantification (e.g transmission function of MS, humidity of sample gas). Work is underway to resolve these issues.de_CH
dc.language.isoende_CH
dc.publisherInnsbruck University Pressde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectHeadspacede_CH
dc.subjectFlavorde_CH
dc.subjectPTR-MSde_CH
dc.subject.ddc540: Chemiede_CH
dc.titleAbsolute quantification of headspace volatiles by PTR-MSde_CH
dc.typeKonferenz: Paperde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Chemie und Biotechnologie (ICBT)de_CH
zhaw.publisher.placeInnsbruckde_CH
zhaw.conference.details1st International Conference on Proton Transfer Reaction Mass Spectrometry and Its Applications, Innsbruck, 18-23 January 2003de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end156de_CH
zhaw.pages.start153de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.title.proceedingsContributions to the 1st International Conference on Proton Transfer Reaction Mass Spectrometry and its Applicationsde_CH
Appears in Collections:Publikationen Life Sciences und Facility Management

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