HOx and NOx production in oxidation flow reactors via photolysis of isopropyl nitrite, isopropyl nitrite-d(7), and 1,3-propyl dinitrite at lambda=254, 350, and 369 nm

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dc.contributor.author Lambe, Andrew T.
dc.contributor.author Krechmer, Jordan E.
dc.contributor.author Peng, Zhe
dc.contributor.author Casar, Jason R.
dc.contributor.author Carrasquillo, Anthony J.
dc.contributor.author Raff, Jonathan D.
dc.contributor.author Jimenez, Jose L.
dc.contributor.author Worsnop, Douglas R.
dc.date.accessioned 2020-02-04T09:26:02Z
dc.date.available 2020-02-04T09:26:02Z
dc.date.issued 2019-01-17
dc.identifier.citation Lambe , A T , Krechmer , J E , Peng , Z , Casar , J R , Carrasquillo , A J , Raff , J D , Jimenez , J L & Worsnop , D R 2019 , ' HOx and NOx production in oxidation flow reactors via photolysis of isopropyl nitrite, isopropyl nitrite-d(7), and 1,3-propyl dinitrite at lambda=254, 350, and 369 nm ' , Atmospheric Measurement Techniques , vol. 12 , no. 1 , pp. 299-311 . https://doi.org/10.5194/amt-12-299-2019
dc.identifier.other PURE: 131400550
dc.identifier.other PURE UUID: 75bb708d-b2ea-41a7-b1dc-8d8151ca3794
dc.identifier.other WOS: 000456053500001
dc.identifier.uri http://hdl.handle.net/10138/310953
dc.description.abstract Oxidation flow reactors (OFRs) are an emerging technique for studying the formation and oxidative aging of organic aerosols and other applications. In these flow reactors, hydroxyl radicals (OH), hydroperoxyl radicals (HO2), and nitric oxide (NO) are typically produced in the following ways: photolysis of ozone (O-3) at), = 254 nm, photolysis of H2O at), = 185 nm, and via reactions of O(D-1) with H2O and nitrous oxide (N2O); O(D-1) is formed via photolysis of O-3 at = 254 nm and/or N2O at = 185 nm. Here, we adapt a complementary method that uses alkyl nitrite photolysis as a source of OH via its production of HO2 and NO followed by the reaction NO + HO2 -> NO2 + OH. We present experimental and model characterization of the OH exposure and NO, levels generated via photolysis of C3 alkyl nitrites (isopropyl nitrite, perdeuterated isopropyl nitrite, 1,3-propyl dinitrite) in the Potential Aerosol Mass (PAM) OFR as a function of photolysis wavelength (7, = 254 to 369 nm) and organic nitrite concentration (0.5 to 20 ppm). We also apply this technique in conjunction with chemical ionization mass spectrometer measurements of multifunctional oxidation products generated following the exposure of a-Pinene to HO, and NO, obtained using both isopropyl nitrite and O-3 + H2O + N2O as the radical precursors. en
dc.format.extent 13
dc.language.iso eng
dc.relation.ispartof Atmospheric Measurement Techniques
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject SECONDARY ORGANIC AEROSOL
dc.subject RADICAL-INITIATED REACTIONS
dc.subject GAS-PHASE REACTIONS
dc.subject RATE CONSTANTS
dc.subject ATMOSPHERIC CHEMISTRY
dc.subject PHOTOCHEMICAL DATA
dc.subject QUANTUM YIELDS
dc.subject RELATIVE RATE
dc.subject OH RADICALS
dc.subject PHOTOOXIDATION
dc.subject 114 Physical sciences
dc.subject 116 Chemical sciences
dc.title HOx and NOx production in oxidation flow reactors via photolysis of isopropyl nitrite, isopropyl nitrite-d(7), and 1,3-propyl dinitrite at lambda=254, 350, and 369 nm en
dc.type Article
dc.contributor.organization INAR Physics
dc.contributor.organization Polar and arctic atmospheric research (PANDA)
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.5194/amt-12-299-2019
dc.relation.issn 1867-1381
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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