dc.contributor.author	Dixneuf, Sophie
dc.contributor.author	Ruth, Albert A.
dc.contributor.author	Häseler, Rolf
dc.contributor.author	Brauers, Theo
dc.contributor.author	Rohrer, Franz
dc.contributor.author	Dorn, Hans-Peter
dc.contributor.funder	Irish Research Council for Science, Engineering and Technology	en
dc.contributor.funder	Seventh Framework Programme	en
dc.contributor.funder	Horizon 2020	en
dc.contributor.funder	Science Foundation Ireland	en
dc.date.accessioned	2021-11-25T14:35:54Z
dc.date.available	2021-11-25T14:35:54Z
dc.date.issued	2022-02-23
dc.date.updated	2021-11-25T14:14:39Z
dc.description.abstract	An instrument based on 20 m open-path incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS) was established at the Jülich SAPHIR chamber in spring 2011. The setup was optimized for the detection of HONO and NO2 in the near-UV region 352–386 nm, utilizing a bright hot-spot Xe-arc lamp and a UV-enhanced charge-coupled device (CCD) detector. A 2σ detection limit of 26 pptv for HONO and 76 pptv for NO2 was achieved for an integration time of 1 min. Methacrolein (MACR) was also detected at mixing ratios below 5 ppbv with an estimated 2σ detection limit of 340 pptv for the same integration time. The IBBCEAS instrument's performance for HONO and NO2 detection was compared to that of extractive wet techniques, long-path absorption photometry (LOPAP), and chemiluminescence spectrometry (CLS) NOx detection, respectively. For the combined data sets an overall good agreement for both trend and absolute mixing ratios was observed between IBBCEAS and these established instruments at SAPHIR. Correlation coefficients r for HONO range from 0.930 to 0.994 and for NO2 from 0.937 to 0.992. For the single measurement of MACR r=0.981 is found in comparison to proton-transfer-reaction mass spectrometry (PTRMS).	en
dc.description.sponsorship	Irish Research Council for Science, Engineering and Technology and Seventh Framework Programme (INSPIRE post-doctoral fellowship); Science Foundation Ireland (Grant no. 21/FFP-A/8973)	en
dc.description.status	Peer reviewed	en
dc.description.version	Published Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Dixneuf, S., Ruth, A. A., Häseler, R., Brauers, T., Rohrer, F. and Dorn, H.-P. (2022) 'Detection of nitrous acid in the atmospheric simulation chamber SAPHIR using open-path incoherent broadband cavity-enhanced absorption spectroscopy and extractive long-path absorption photometry', Atmospheric Measurement Techniques, 15, pp. 945–964. doi: 10.5194/amt-15-945-2022	en
dc.identifier.doi	10.5194/amt-15-945-2022	en
dc.identifier.eissn	1867-8548
dc.identifier.endpage	964	en
dc.identifier.issn	1867-1381
dc.identifier.journaltitle	Atmospheric Measurement Techniques	en
dc.identifier.startpage	945	en
dc.language.iso	en	en
dc.publisher	Copernicus Publications on behalf of European Geosciences Union	en
dc.relation.project	info:eu-repo/grantAgreement/EC/H2020::RIA/730997/EU/Integration of European Simulation Chambers for Investigating Atmospheric Processes – Towards 2020 and beyond/EUROCHAMP-2020
dc.relation.uri	https://amt.copernicus.org/preprints/amt-2021-291/amt-2021-291.pdf
dc.rights	© 2022, the Authors. This work is distributed under the Creative Commons Attribution 4.0 License.	en
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	en
dc.subject	Incoherent broadband cavity-enhanced absorption spectroscopy	en
dc.subject	IBBCEAS	en
dc.title	Detection of nitrous acid in the atmospheric simulation chamber SAPHIR using open-path incoherent broadband cavity-enhanced absorption spectroscopy and extractive long-path absorption photometry	en
dc.type	Article (peer-reviewed)	en

Detection of nitrous acid in the atmospheric simulation chamber SAPHIR using open-path incoherent broadband cavity-enhanced absorption spectroscopy and extractive long-path absorption photometry

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