Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry
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, H<sub>3</sub>O<sup>+</sup>∕ H<sub>3</sub>O&l...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2017-04-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | http://www.atmos-meas-tech.net/10/1445/2017/amt-10-1445-2017.pdf |
| _version_ | 1818615163212791808 |
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| author | M. Duncianu M. David S. Kartigueyane M. Cirtog J.-F. Doussin B. Picquet-Varrault |
| author_facet | M. Duncianu M. David S. Kartigueyane M. Cirtog J.-F. Doussin B. Picquet-Varrault |
| author_sort | M. Duncianu |
| collection | DOAJ |
| description | 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,
H<sub>3</sub>O<sup>+</sup>∕ H<sub>3</sub>O<sup>+</sup>(H<sub>2</sub>O)<sub><i>n</i></sub> or NO<sup>+</sup>∕ NO<sub>2</sub><sup>+</sup>.
The proposed approach has been proven to be appropriate for the online
detection of individual alkyl nitrates and functionalized nitrates. It has
been shown that hydroxyl and ketonitrates have a high affinity towards
NO<sup>+</sup>, leading to the formation of an adduct that allows the easy
identification of the organic nitrate (R) from the R–NO<sup>+</sup> ion signal.
The recorded sensitivities for both ionization modes correspond to detection
limits of tens of ppt min<sup>−1</sup> in the case of hydroxy- and ketonitrates.
Alkyl nitrates exhibit a moderate affinity towards NO<sup>+</sup> ionization
leading to detection units of few hundreds of ppt and the highest
sensitivity in H<sub>3</sub>O<sup>+</sup> mode was obtained for the water adducts
signals. However, this method exhibits much lower capabilities for the
detection of peroxyacetyl nitrates with detection limits in the ppb range. |
| first_indexed | 2024-12-16T16:29:32Z |
| format | Article |
| id | doaj.art-8ac3fa51cbcc445fa529b6bcef0ad523 |
| institution | Directory Open Access Journal |
| issn | 1867-1381 1867-8548 |
| language | English |
| last_indexed | 2024-12-16T16:29:32Z |
| publishDate | 2017-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Measurement Techniques |
| spelling | doaj.art-8ac3fa51cbcc445fa529b6bcef0ad5232022-12-21T22:24:38ZengCopernicus PublicationsAtmospheric Measurement Techniques1867-13811867-85482017-04-011041445146310.5194/amt-10-1445-2017Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometryM. Duncianu0M. David1S. Kartigueyane2M. Cirtog3J.-F. Doussin4B. Picquet-Varrault5Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceLaboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceLaboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceLaboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceLaboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceLaboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), UMR-CNRS 7583, Université Paris-Est-Créteil (UPEC) et Université Paris Diderot (UPD), Paris, FranceA 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, H<sub>3</sub>O<sup>+</sup>∕ H<sub>3</sub>O<sup>+</sup>(H<sub>2</sub>O)<sub><i>n</i></sub> or NO<sup>+</sup>∕ NO<sub>2</sub><sup>+</sup>. The proposed approach has been proven to be appropriate for the online detection of individual alkyl nitrates and functionalized nitrates. It has been shown that hydroxyl and ketonitrates have a high affinity towards NO<sup>+</sup>, leading to the formation of an adduct that allows the easy identification of the organic nitrate (R) from the R–NO<sup>+</sup> ion signal. The recorded sensitivities for both ionization modes correspond to detection limits of tens of ppt min<sup>−1</sup> in the case of hydroxy- and ketonitrates. Alkyl nitrates exhibit a moderate affinity towards NO<sup>+</sup> ionization leading to detection units of few hundreds of ppt and the highest sensitivity in H<sub>3</sub>O<sup>+</sup> mode was obtained for the water adducts signals. However, this method exhibits much lower capabilities for the detection of peroxyacetyl nitrates with detection limits in the ppb range.http://www.atmos-meas-tech.net/10/1445/2017/amt-10-1445-2017.pdf |
| spellingShingle | M. Duncianu M. David S. Kartigueyane M. Cirtog J.-F. Doussin B. Picquet-Varrault Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry Atmospheric Measurement Techniques |
| title | Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry |
| title_full | Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry |
| title_fullStr | Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry |
| title_full_unstemmed | Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry |
| title_short | Measurement of alkyl and multifunctional organic nitrates by proton-transfer-reaction mass spectrometry |
| title_sort | measurement of alkyl and multifunctional organic nitrates by proton transfer reaction mass spectrometry |
| url | http://www.atmos-meas-tech.net/10/1445/2017/amt-10-1445-2017.pdf |
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