Evaluating the Utility of an Atmospheric Pressure Chemical Ionization Mass Spectrometer for Detecting Organic Peroxides During Beta-Pinene Ozonolysis Experiments

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dc.contributor.advisorHastie, Donald R.
dc.creatorJameer, Amanda Ophelia
dc.date.accessioned2015-08-28T15:04:07Z
dc.date.available2015-08-28T15:04:07Z
dc.date.copyright2014-10-16
dc.date.issued2015-08-28
dc.date.updated2015-08-28T15:04:07Z
dc.degree.disciplineChemistry
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractThe intent of this study was to use a positive-ion atmospheric pressure chemical ionization mass spectrometer ((+) APCI-MS/MS) to detect organic peroxide products formed during β-pinene ozonolysis experiments. Detection was based on utilizing the neutral-loss scan (NLS) analysis mode of the APCI-MS/MS to observe ion signals exhibiting unique mass losses of 34 u. This mass loss was considered exclusive to protonated organic peroxides containing a hydroperoxy moiety. Given this observation, the NLS analysis mode was used to selectively detect organic peroxides formed during β-pinene ozonolysis experiments. Overall, six organic peroxide structures were proposed. Further product-ion scan analysis on the six proposed structures revealed additional unique mass losses of 32 u and 62 u that could be use in combination with 34 u NLS analysis to selectively detect organic peroxides. The results from this study can assist in ascertaining organic peroxide contribution to secondary organic aerosol for future ozonolysis experiments.
dc.identifier.urihttp://hdl.handle.net/10315/29930
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectAtmospheric chemistry
dc.subjectAnalytical chemistry
dc.subjectChemistry
dc.subject.keywordsAtmosphere
dc.subject.keywordsChemistry
dc.subject.keywordsMass spectrometry
dc.subject.keywordsAtmospheric science
dc.subject.keywordsOrganic peroxides
dc.subject.keywordsHydroperoxides
dc.subject.keywordsPeroxy acids
dc.subject.keywordsAtmospheric pressure chemical ionization
dc.subject.keywordsChemical ionization
dc.subject.keywordsNeutral loss
dc.titleEvaluating the Utility of an Atmospheric Pressure Chemical Ionization Mass Spectrometer for Detecting Organic Peroxides During Beta-Pinene Ozonolysis Experiments
dc.typeElectronic Thesis or Dissertationen_US

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