Development of an analytical methodology for obtaining quantitative mass concentrations from LAAP-ToF-MS measurements

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dc.contributor.author Gemayel, Rachel
dc.contributor.author Temime-Roussel, Brice
dc.contributor.author Hayeck, Nathalie
dc.contributor.author Gandolfo, Adrien
dc.contributor.author Hellebust, Stig
dc.contributor.author Gligorovski, Sasho
dc.contributor.author Wortham, Henri
dc.date.accessioned 2017-06-28T11:58:10Z
dc.date.available 2017-06-28T11:58:10Z
dc.date.issued 2017-06-21
dc.identifier.citation Gemayel, R., Temime-Roussel, B., Hayeck, N., Gandolfo, A., Hellebust, S., Gligorovski, S. and Wortham, H. (2017) 'Development of an analytical methodology for obtaining quantitative mass concentrations from LAAP-ToF-MS measurements', Talanta, 174, pp. 715-724. doi: 10.1016/j.talanta.2017.06.050 en
dc.identifier.volume 174
dc.identifier.startpage 715
dc.identifier.endpage 724
dc.identifier.issn 0039-9140
dc.identifier.uri http://hdl.handle.net/10468/4199
dc.identifier.doi 10.1016/j.talanta.2017.06.050
dc.description.abstract Laser ablation aerosol particle-time of flight mass spectrometer (LAAP-ToF-MS) measures the size number of particles, and chemical composition of individual particles in real-time. LAAP-ToF-MS measurements of chemical composition are difficult to quantify, mostly because the instrument sensitivities to various chemical species in the multicomponent atmospheric aerosol particles are unknown. In this study, we investigate a field-based approach for quantitative measurements of ammonium, nitrate, sulfate, OC, and EC, in size-segregated atmospheric aerosols, by LAAP-ToF-MS using concurrent measurements from high-resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS), and multi-angle absorption photometer (MAAP). An optical particle counter (OPC) and a high-resolution nanoparticle sizer (scanning mobility particle sizer, or SMPS), were used to measure the particle size distributions of the particles in order to correct the number concentrations. The intercomparison reveals that the degree of agreement of the mass concentrations of each compound measured with LAAP-ToF-MS and HR-ToF-AMS/MAAP increases in the following order NH4+ <SO42- <NO3- <EC <OC <Cl- with r2 values in the range of 0.4–0.95 and linear regression slopes ranging between 0.62 and 1.2. The factors that affect the mass concentrations measured by LAAP-ToF-MS are also discussed in details. Yet, the matrix effect remains one of the strongest limiting factor to achieve an absolute quantification of the aerosol chemical composition. In the future we suggest the development of a methodology based on the calculation of the response factors generated by different types of particles, which could possibly resolve certain difficulties associated with the matrix effect. en
dc.description.sponsorship Agence Nationale de la Recherche (French National Research Agency, LABEX SERENADE (no. ANR-11-LABX-0064) funded by the “Investisse- ments d’Avenir”, French Government program of the (ANR) through the A*Midex project (No. ANR-11-IDEX-0001–02), (ANR-10-EQPX-39-01)) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier en
dc.rights © 2017 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Single aerosol en
dc.subject Laser ablation en
dc.subject LAAP-ToF-MS en
dc.subject Matrix effect en
dc.subject Quantification en
dc.title Development of an analytical methodology for obtaining quantitative mass concentrations from LAAP-ToF-MS measurements en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Stig Hellebust, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: s.hellebust@ucc.ie en
dc.internal.availability Full text available en
dc.check.info Access to this article is restricted until 24 months after publication at the request of the publisher. en
dc.check.date 2019-06-21
dc.date.updated 2017-06-28T11:47:08Z
dc.description.version Accepted Version en
dc.internal.rssid 400850995
dc.contributor.funder Agence Nationale de la Recherche en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Talanta en
dc.internal.copyrightchecked No !!CORA!! en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress s.hellebust@ucc.ie en


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© 2017 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license Except where otherwise noted, this item's license is described as © 2017 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
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