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dc.contributor.authorThieser, Jim*
dc.contributor.authorSchuster, Gerhard*
dc.contributor.authorPhillips, Gavin J.*
dc.contributor.authorReiffs, Andreas*
dc.contributor.authorParchatka, Uwe*
dc.contributor.authorPoehler, D.*
dc.contributor.authorLelieveld, Jos*
dc.contributor.authorCrowley, John N.*
dc.contributor.authorSchuladen, Jan*
dc.date.accessioned2016-02-25T10:14:21Z
dc.date.available2016-02-25T10:14:21Z
dc.date.issued2016-02-17
dc.identifier.citationThieser, J., Schuster, G., Schuladen, J., Phillips, G. J., Reiffs, A., Parchatka, U., Pöhler, D., Lelieveld, J., & Crowley, J. N. (2016). A two-channel thermal dissociation cavity ring-down spectrometer for the detection of ambient NO2, RO2NO2 and RONO2, Atmospheric Measurement Techniques, 9, 553-576. DOI:10.5194/amt-9-553-2016.en
dc.identifier.issn1867-8548en
dc.identifier.doi10.5194/amt-9-553-2016
dc.identifier.urihttp://hdl.handle.net/10034/597178
dc.descriptionCreative Commons Attribution License 3.0en
dc.description.abstractWe describe a thermal dissociation cavity ring-down spectrometer (TD-CRDS) for measurement of ambient NO2, total peroxy nitrates (ΣPNs) and total alkyl nitrates (ΣANs). The spectrometer has two separate cavities operating at  ∼  405.2 and 408.5 nm. One cavity (reference) samples NO2 continuously from an inlet at ambient temperature, the other samples sequentially from an inlet at 473 K in which PNs are converted to NO2 or from an inlet at 723 K in which both PNs and ANs are converted to NO2, difference signals being used to derive mixing ratios of ΣPNs and ΣANs. We describe an extensive set of laboratory experiments and numerical simulations to characterise the fate of organic radicals in the hot inlets and cavity and derive correction factors to account for the bias resulting from the interaction of peroxy radicals with ambient NO and NO2. Finally, we present the first measurements and comparison with other instruments during a field campaign, outline the limitations of the present instrument and provide an outlook for future improvements.
dc.description.sponsorshipPublication funded by the Max Planck Societyen
dc.language.isoenen
dc.publisherCopernicus Publicationsen
dc.relation.urlhttp://www.atmos-meas-tech.net/9/553/2016/amt-9-553-2016.htmlen
dc.subjectanalytical chemistryen
dc.subjectatmospheric chemistryen
dc.subjectreactive nitrogenen
dc.subjectNOxen
dc.subjectspectrometryen
dc.titleA two-channel, Thermal Dissociation Cavity-Ringdown Spectrometer for the detection of ambient NO2, RO2NO2 and RONO2en
dc.typeArticleen
dc.contributor.departmentMax-Planck Institut fur Chemie ; University of Heidelberg ; University of Chesteren
dc.identifier.journalAtmospheric Measurement Techniques
dc.internal.reviewer-noteSally to process 22/02/2016en
rioxxterms.versionofrecordhttps://doi.org/10.5194/amt-9-553-2016
html.description.abstractWe describe a thermal dissociation cavity ring-down spectrometer (TD-CRDS) for measurement of ambient NO2, total peroxy nitrates (ΣPNs) and total alkyl nitrates (ΣANs). The spectrometer has two separate cavities operating at  ∼  405.2 and 408.5 nm. One cavity (reference) samples NO2 continuously from an inlet at ambient temperature, the other samples sequentially from an inlet at 473 K in which PNs are converted to NO2 or from an inlet at 723 K in which both PNs and ANs are converted to NO2, difference signals being used to derive mixing ratios of ΣPNs and ΣANs. We describe an extensive set of laboratory experiments and numerical simulations to characterise the fate of organic radicals in the hot inlets and cavity and derive correction factors to account for the bias resulting from the interaction of peroxy radicals with ambient NO and NO2. Finally, we present the first measurements and comparison with other instruments during a field campaign, outline the limitations of the present instrument and provide an outlook for future improvements.
rioxxterms.publicationdate2016-02-17
dc.dateAccepted2016-01-28
dc.date.deposited2016-02-25


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