A two-channel, Thermal Dissociation Cavity-Ringdown Spectrometer for the detection of ambient NO2, RO2NO2 and RONO2

Hdl Handle:
http://hdl.handle.net/10034/597178
Title:
A two-channel, Thermal Dissociation Cavity-Ringdown Spectrometer for the detection of ambient NO2, RO2NO2 and RONO2
Authors:
Thieser, Jim; Schuster, Gerhard; Phillips, Gavin J. ( 0000-0003-4443-0822 ) ; Reiffs, Andreas; Parchatka, Uwe; Poehler, D.; Lelieveld, Jos; Crowley, John N.; Schuladen, Jan
Abstract:
We 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.
Affiliation:
Max-Planck Institut fur Chemie ; University of Heidelberg ; University of Chester
Citation:
Thieser, 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.
Publisher:
Copernicus Publications
Journal:
Atmospheric Measurement Techniques
Publication Date:
17-Feb-2016
URI:
http://hdl.handle.net/10034/597178
DOI:
10.5194/amt-9-553-2016
Additional Links:
http://www.atmos-meas-tech.net/9/553/2016/amt-9-553-2016.html
Type:
Article
Language:
en
Description:
Creative Commons Attribution License 3.0
ISSN:
1867-8548
Sponsors:
Publication funded by the Max Planck Society
Appears in Collections:
Natural Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorThieser, Jimen
dc.contributor.authorSchuster, Gerharden
dc.contributor.authorPhillips, Gavin J.en
dc.contributor.authorReiffs, Andreasen
dc.contributor.authorParchatka, Uween
dc.contributor.authorPoehler, D.en
dc.contributor.authorLelieveld, Josen
dc.contributor.authorCrowley, John N.en
dc.contributor.authorSchuladen, Janen
dc.date.accessioned2016-02-25T10:14:21Zen
dc.date.available2016-02-25T10:14:21Zen
dc.date.issued2016-02-17en
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-9-553-2016en
dc.identifier.urihttp://hdl.handle.net/10034/597178en
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.en
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 Techniquesen
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