Development of Purge-and-Trap Sample Preconcentrator for Enhanced Detection of Alkyl Nitrates by Thermal Dissociation Cavity Ring-Down Spectroscopy

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atmire.migration.oldid5183
dc.contributor.advisorOsthoff, Hans
dc.contributor.authorYe, Connie
dc.contributor.committeememberThurbide, Kevin
dc.contributor.committeememberGailer, Jürgen
dc.contributor.committeememberMarriott, Robert
dc.date.accessioned2016-12-22T20:56:18Z
dc.date.available2016-12-22T20:56:18Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractThis thesis describes the development of a sample preconcentrator for enhanced detection of alkyl nitrates (∑ANs) in ambient air by thermal dissociation cavity ring-down spectroscopy (TD-CRDS). The recovery of isopropyl nitrate on Tenax adsorbent was (96±1)% and unaffected by potential interfering gases such as ozone and nitrogen dioxide. Mixtures of five alkyl nitrates were also recovered in high yield in dry (99±5)% and in humidified air (92±11)% with relative humidity of 83%. Results from the first field deployment of the new instrument from the Ozone-depleting Reactions in a Coastal Atmosphere (ORCA) campaign are presented. The ORCA campaign took place at the Amphitrite Point Observatory on the West coast of Vancouver Island in Ucluelet, B,C. from July 6-31, 2015. A signal to noise ratio of 16.8 and a limit of detection of 7 pptv were demonstrated in the field. Future applications include measurements of isoprene and monoterpene nitrates.en_US
dc.identifier.citationYe, C. (2016). Development of Purge-and-Trap Sample Preconcentrator for Enhanced Detection of Alkyl Nitrates by Thermal Dissociation Cavity Ring-Down Spectroscopy (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25688en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/25688
dc.identifier.urihttp://hdl.handle.net/11023/3510
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectChemistry--Analytical
dc.subject.classificationAtmospheric Scienceen_US
dc.subject.classificationCavity Ring-Down Spectroscopyen_US
dc.subject.classificationAlkyl nitratesen_US
dc.titleDevelopment of Purge-and-Trap Sample Preconcentrator for Enhanced Detection of Alkyl Nitrates by Thermal Dissociation Cavity Ring-Down Spectroscopy
dc.typemaster thesis
thesis.degree.disciplineChemistry
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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