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  A five-channel cavity ring-down spectrometer for the detection of NO2, NO3, N2O5, total peroxy nitrates and total alkyl nitrates

Sobanski, N., Schuladen, J., Schuster, G., Lelieveld, J., & Crowley, J. N. (2016). A five-channel cavity ring-down spectrometer for the detection of NO2, NO3, N2O5, total peroxy nitrates and total alkyl nitrates. Atmospheric Measurement Techniques Discussions, 9.

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Sobanski, N.1, Author              
Schuladen, J.1, Author              
Schuster, G.1, Author              
Lelieveld, J.1, Author              
Crowley, J. N.1, Author              
Affiliations:
1Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              

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 Abstract: We report the characteristics and performance of a newly developed five-channel cavity ring-down spectrometer to detect NO3, N2O5, NO2, total peroxy nitrates (Sigma PNs) and total alkyl nitrates (Sigma ANs). NO3 and NO2 are detected directly at 662 and 405 nm, respectively. N2O5 is measured as NO3 after thermal decomposition at 383 K. PNs and ANs are detected as NO2 after thermal decomposition at 448 and 648 K. We describe details of the instrument construction and operation as well as the results of extensive laboratory experiments that quantify the chemical and optical interferences that lead to biases in the measured mixing ratios, in particular involving the reactions of organic radical fragments following thermal dissociation of PNs and ANs. Finally, we present data obtained during the first field deployment of the instrument in July 2015.

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Language(s): eng - English
 Dates: 2016
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.5194/amt-2016-191
 Degree: -

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Title: Atmospheric Measurement Techniques Discussions
  Other : Atmos. Meas. Tech. Discuss.
  Abbreviation : AMTD
Source Genre: Journal
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Publ. Info: Katlenburg-Lindau : Copernicus
Pages: 32 Volume / Issue: 9 Sequence Number: - Start / End Page: - Identifier: Other: 1867-8610
CoNE: https://pure.mpg.de/cone/journals/resource/1867-8610