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Atmospheric Measurement Techniques An interactive open-access journal of the European Geosciences Union

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doi:10.5194/amt-2016-318
© Author(s) 2016. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
07 Nov 2016
Review status
A revision of this discussion paper was accepted for the journal Atmospheric Measurement Techniques (AMT) and is expected to appear here in due course.
Measurement of alkyl and multifunctional organic nitrates by Proton Transfer Reaction Mass Spectrometry
Marius Duncianu, Marc David, Sakthivel Kartigueyane, Manuela Cirtog, Jean-Francois Doussin, and Benedicte Picquet-Varrault Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), France
Abstract. A commercial PTR-ToF-MS has been optimized in order to allow the measurement of individual organic nitrates in the atmosphere. This has been accomplished by shifting the distribution between different ionizing analytes, H3O+/H3O+(H2O)n or NO+/NO2+. The proposed approach has been proved to be appropriate for the on-line detection of individual alkyl nitrates and functionalized nitrates. It has been shown that hydroxyl- and keto-nitrates have a high affinity towards NO+, leading to the formation of an adduct that allows to easily identify the organic nitrate (R) with the R-NO+ ion signal. The recorded sensitivities for both ionization modes correspond to detection limits of tens of ppt min−1 in the case of hydroxy- and keto-nitrates. Alkyl nitrates exhibit a moderate affinity towards NO+ ionization leading to detection units of few hundreds of ppt and the highest sensitivity in H3O+ mode was obtained for the water adducts signals. This method exhibits however lower capabilities for the detection of PANs with detection limits in the ppb range.

Citation: Duncianu, M., David, M., Kartigueyane, S., Cirtog, M., Doussin, J.-F., and Picquet-Varrault, B.: Measurement of alkyl and multifunctional organic nitrates by Proton Transfer Reaction Mass Spectrometry, Atmos. Meas. Tech. Discuss., doi:10.5194/amt-2016-318, in review, 2016.
Marius Duncianu et al.
Interactive discussionStatus: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version      Supplement - Supplement
 
RC1: 'Reviewer Comments', Anonymous Referee #1, 20 Dec 2016 Printer-friendly Version Supplement 
AC1: 'Authors response', Duncianu Marius, 31 Jan 2017 Printer-friendly Version Supplement 
 
RC2: 'revision AMTD paper Duncianu et al', Anonymous Referee #2, 02 Jan 2017 Printer-friendly Version 
AC2: 'Authors response', Duncianu Marius, 31 Jan 2017 Printer-friendly Version Supplement 
Marius Duncianu et al.
Marius Duncianu et al.

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