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Studies in search of selective detection of isomeric biogenic hexen-1-ols and hexanal by flowing afterglow tandem mass spectrometry using [H 3O] + and [NO] + reagent ions

dc.contributor.authorDhooghe, F.
dc.contributor.authorVansintjan, R.
dc.contributor.authorSchoon, N.
dc.contributor.authorAmelynck, C.
dc.date2012
dc.date.accessioned2016-03-29T10:07:37Z
dc.date.available2016-03-29T10:07:37Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/3027
dc.descriptionRATIONALE Plants emit a blend of oxygenated volatile C 6 compounds, known as green leaf volatiles (GLVs), in response to leaf tissue damage related to stress conditions. On-line chemical ionization mass spectrometry (CI-MS) techniques have often been used to study the dynamics of these emissions but they fail to selectively detect some important GLV compounds. METHODS A flowing afterglow tandem mass spectrometer (FA-TMS) was used to investigate the feasibility of selective on-line detection of isomeric hexen-1-ols and hexanal. Product ions at m/z 101 and 83 from chemical ionization (CI) of these compounds by [H 3O] +, and product ions at m/z 100, 99, 83, 82 and 72 from CI by [NO] +, have been subjected to collision-induced dissociation (CID) in the collision cell of the TMS at center-of-mass energies ranging between 0 and 9 eV. RESULTS CID of product ions at m/z 101 and 83 from CI of GLVs with [H 3O] + and of product ions at m/z 83, 82 and 72 from CI of GLVs with [NO] + resulted in identical fragmentation patterns for all measured compounds, ruling out any selectivity. However, CID of product ions at m/z 100 and 99 from CI by [NO] + led to CID product ions with abundances differing largely between the compounds, allowing the fast selective detection of 2-hexen-1-ols, 3-hexen-1-ols and hexanal with a chosen accuracy within a well-defined range of relative concentrations. CONCLUSIONS This research illustrates that, in contrast to common CI-MS techniques, FA-TMS allows the selective detection of hexanal in a mixture of hexanal and hexen-1-ols with a chosen accuracy for a well-defined range of relative concentrations and represents a step forward in the search for selective detection of GLVs in CI-TMS.
dc.languageeng
dc.titleStudies in search of selective detection of isomeric biogenic hexen-1-ols and hexanal by flowing afterglow tandem mass spectrometry using [H 3O] + and [NO] + reagent ions
dc.typeArticle
dc.subject.frascatiPhysical sciences
dc.audienceScientific
dc.subject.free3 hexen 1 ol
dc.subject.free3-hexen-1-ol
dc.subject.freealdehyde
dc.subject.freecation
dc.subject.freehexanol
dc.subject.freehydronium ion
dc.subject.freeion
dc.subject.freen hexanal
dc.subject.freen-hexanal
dc.subject.freenitric oxide
dc.subject.freenitrosonium ion
dc.subject.freevolatile organic compound
dc.subject.freearticle
dc.subject.freechemistry
dc.subject.freeisomerism
dc.subject.freemethodology
dc.subject.freetandem mass spectrometry
dc.subject.freeAldehydes
dc.subject.freeHexanols
dc.subject.freeIons
dc.subject.freeIsomerism
dc.subject.freeNitric Oxide
dc.subject.freeOnium Compounds
dc.subject.freeTandem Mass Spectrometry
dc.subject.freeVolatile Organic Compounds
dc.source.titleRapid Communications in Mass Spectrometry
dc.source.volume26
dc.source.issue16
dc.source.page1868-1874
Orfeo.peerreviewedYes
dc.identifier.doi10.1002/rcm.6294
dc.identifier.scopus2-s2.0-84863673030


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