A gas chromatograph for quantification of peroxycarboxylic nitric anhydrides calibrated by thermal dissociation cavity ring-down spectroscopy

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dc.contributor.authorTokarek, T. W.
dc.contributor.authorHuo, J. A.
dc.contributor.authorOdame-Ankrah, C. A.
dc.contributor.authorHammoud, D.
dc.contributor.authorTaha, Y. M.
dc.contributor.authorOsthoff, H. D.
dc.date.accessioned2021-06-29T02:49:50Z
dc.date.available2021-06-29T02:49:50Z
dc.date.issued2014-10-01
dc.description.abstractThe peroxycarboxylic nitric anhydrides (PANs, molecular formula: RC(O)O2NO2) can readily be observed by gas chromatography (PAN-GC) coupled to electron capture detection. Calibration of a PAN-GC remains a challenge, because the response factors differ for each of the PANs, and because their synthesis in sufficiently high purity is non-trivial, in particular for PANs containing unsaturated side chains. In this manuscript, a PAN-GC and its calibration using diffusion standards, whose output was quantified by blue diode laser thermal dissociation cavity ring-down spectroscopy (TD-CRDS), are described. The PAN-GC peak areas correlated linearly with total peroxy nitrate (ΣPN) mixing ratios measured by TD-CRDS (r > 0.96). Accurate determination of response factors required the concentrations of PAN impurities in the synthetic standards to be subtracted from ΣPN. The PAN-GC and its TD-CRDS calibration method were deployed during ambient air measurement campaigns in Abbotsford, BC, from 20 July to 5 August 2012, and during the Fort McMurray Oil Sands Strategic Investigation of Local Sources (FOSSILS) campaign at the AMS13 ground site in Fort McKay, AB, from 10 August to 5 September 2013. The PAN-GC limits of detection for PAN, PPN, and MPAN during FOSSILS were 1, 2, and 3 pptv, respectively. For the Abbotsford data set, the PAN-GC mixing ratios were compared, and agreed with those determined in parallel by thermal dissociation chemical ionization mass spectrometry (TD-CIMS). Advantages and disadvantages of the PAN measurement techniques used in this work and the utility of TD-CRDS as a PAN-GC calibration method are discussed.en_US
dc.description.grantingagencyNatural Sciences and Engineering Research Council (NSERC)en_US
dc.identifier.citationTokarek, T. W., Huo, J. A., Odame-Ankrah, C. A., Hammoud, D., Taha, Y. M., & Osthoff, H. D. (2014). A gas chromatograph for quantification of peroxycarboxylic nitric anhydrides calibrated by thermal dissociation cavity ring-down spectroscopy. Atmospheric Measurement Techniques, 7(10), 3263–3283. doi:10.5194/amt-7-3263-2014en_US
dc.identifier.doihttp://dx.doi.org/10.5194/amt-7-3263-2014en_US
dc.identifier.urihttp://hdl.handle.net/1880/113558
dc.language.isoengen_US
dc.publisherEuropean Geosciences Unionen_US
dc.publisher.departmentChemistryen_US
dc.publisher.facultyScienceen_US
dc.publisher.hasversionpublishedVersionen_US
dc.publisher.institutionUniversity of Calgaryen_US
dc.rights© Author(s) 2014en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.titleA gas chromatograph for quantification of peroxycarboxylic nitric anhydrides calibrated by thermal dissociation cavity ring-down spectroscopyen_US
dc.typejournal articleen_US
ucalgary.item.requestcopytrueen_US
ucalgary.scholar.levelFacultyen_US
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