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Scientific Articles - PTR-MS Bibliography

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Found 9 results
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Filters: Author is Märk, L  [Clear All Filters]
[1790] Müller, M., T. Mikoviny, S. Feil, S. Haidacher, G. Hanel, E. Hartungen, A. Jordan, L. Märk, P. Mutschlechner, R. Schottkowsky, et al., "A compact PTR-ToF-MS instrument for airborne measurements of volatile organic compounds at high spatiotemporal resolution", Atmospheric Measurement Techniques, vol. 7, pp. 3763–3772, 2014.
<p>Herein, we report on the development of a compact proton-transfer-reaction time-of-flight mass spectrometer (PTR-ToF-MS) for airborne measurements of volatile organic compounds (VOCs). The new instrument resolves isobaric ions with a mass resolving power (m/Δm) of &nbsp;1000, provides accurate m/z measurements (Δm &lt; 3 mDa), records full mass spectra at 1 Hz and thus overcomes some of the major analytical deficiencies of quadrupole-MS-based airborne instruments. 1 Hz detection limits for biogenic VOCs (isoprene, α total monoterpenes), aromatic VOCs (benzene, toluene, xylenes) and ketones (acetone, methyl ethyl ketone) range from 0.05 to 0.12 ppbV, making the instrument well-suited for fast measurements of abundant VOCs in the continental boundary layer. The instrument detects and quantifies VOCs in locally confined plumes (&lt; 1 km), which improves our capability of characterizing emission sources and atmospheric processing within plumes. A deployment during the NASA 2013 DISCOVER-AQ mission generated high vertical- and horizontal-resolution in situ data of VOCs and ammonia for the validation of satellite retrievals and chemistry transport models.</p>
[Wisthaler2013] Wisthaler, A., JH. Crawford, S. Haidacher, G. Hanel, E. Hartungen, A. Jordan, L. Märk, T. Mikoviny, M. Müller, P. Mutschlechner, et al., "Development of a compact PTR-ToF-MS for Suborbital Research on the Earth's Atmospheric Composition", CONFERENCE SERIES, pp. 96, 2013.
[Jordan2012] Jordan, A., C. Lindinger, L. Märk, P. Sulzer, S. Juerschik, H. Seehauser, and TD. Märk, "Monitoring and Quantifying Toxic Industrial Compounds (TICs) with Proton with Proton-Transfer-Reaction Mass Spectrometry (PTR Reaction Mass Spectrometry (PTR-MS)", : IONICON Analytik, 2012.
[Sulzer2011] Sulzer, P., A. Jordan, G. Hanel, E. Hartungen, H. Seehauser, L. Märk, S. Haidacher, R. Schottkowsky, KH. Becker, and TD. Märk, "Detection of explosives Detection of explosives with Proton Transfer Reaction Transfer Reaction-Mass Spectrometry Mass Spectrometry", , 2011.
[Juerschik2010] Juerschik, S., A. Tani, P. Sulzer, S. Haidacher, A. Jordan, R. Schottkowsky, E. Hartungen, G. Hanel, H. Seehauser, L. Märk, et al., "Direct aqueous injection analysis of trace compounds in water with proton-transfer-reaction mass spectrometry (PTR-MS)", International Journal of Mass Spectrometry, vol. 289, no. 2: Elsevier, pp. 173–176, 2010.
Here we present proof-of-principle investigations on a novel inlet system for proton-transfer-reaction mass spectrometry (PTR-MS) that allows for the analysis of trace compounds dissolved in water. The PTR-MS technique offers many advantages, such as real-time analysis, online quantification, no need for sample preparation, very low detection limits, etc.; however it requires gas phase samples and therefore liquid samples cannot be investigated directly. Attempts to measure trace compounds in water that have been made so far are mainly headspace analysis above the water surface and membrane inlet setups, which both are well suitable for certain applications, but also suffer from significant disadvantages. The direct aqueous injection (DAI) technique which we will discuss here turns out to be an ideal solution for the analysis of liquid samples with PTR-MS. We show that we can detect trace compounds in water over several orders of magnitude down to a concentration level of about 100 pptw, while only consuming about 100 μl of the sample. The response time of the setup is about 20 s and can therefore definitely be called “online”. Moreover the method is applicable to the analysis of all substances and not limited by the permeability of a membrane.
[Jordan2010a] Jordan, A., S. Jaksch, S. Juerschik, A. Edtbauer, B. Agarwal, G. Hanel, E. Hartungen, H. Seehauser, L. Märk, P. Sulzer, et al., "H3O+, NO+ and O2 as precursor ions in PTR as precursor ions in PTR-MS: isomeric VOC compounds and reactions with different chemical groups", : IONICON Analytik, 2010.
[Jordan2010c] Jordan, A., G. Hanel, E. Hartungen, P. Sulzer, H. Seehauser, S. Haidacher, R. Schottkowsky, C. Lindinger, L. Märk, and TD. Märk, "Novel Developments in Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS): Switchable Reagent Ions (PTR+ SRI-MS) and ppqv Detection Limit", : IONICON Analytik, 2010.
[Jordan2010b] Jordan, A., G. Hanel, E. Hartungen, P. Sulzer, H. Seehauser, S. Haidacher, R. Schottkowsky, F. Petersson, C. Lindinger, L. Märk, et al., "Proton-Transfer-Reaction Time of Flight Mass-Spectrometry (PTR-TOF-MS): Comparison of Compact-Time of Flight (C TOF) and High Resolution-Time of Flight (HRS TOF) Platforms", , 2010.
[Sulzer2009] Sulzer, P., A. Jordan, G. Hanel, E. Hartungen, H. Seehauser, L. Märk, S. Haidacher, R. Schottkowsky, and TD. Märk, "Advantages of Proton Transfer Reaction Advantages of Proton Transfer Reaction–Mass Spectrometry (PTR Mass Spectrometry (PTR-MS) in the Analysis of Potentially Dangerous Substances", : IONICON Analytik, 2009.

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Selected PTR-MS related Reviews

F. Biasioli, C. Yeretzian, F. Gasperi, T. D. Märk: PTR-MS monitoring of VOCs and BVOCs in food science and technology, Trends in Analytical Chemistry 30 (7) (2011).

J. de Gouw, C. Warneke, T. Karl, G. Eerdekens, C. van der Veen, R. Fall: Measurement of Volatile Organic Compounds in the Earth's Atmosphere using Proton-Transfer-Reaction Mass Spectrometry. Mass Spectrometry Reviews, 26 (2007), 223-257.

W. Lindinger, A. Hansel, A. Jordan: Proton-transfer-reaction mass spectrometry (PTR–MS): on-line monitoring of volatile organic compounds at pptv levels, Chem. Soc. Rev. 27 (1998), 347-375.


Lists with PTR-MS relevant publications of the University of Innsbruck can be found here: Atmospheric and indoor air chemistry, IMR, Environmental Physics and Nano-Bio-Physics


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