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Scientific Articles - PTR-MS Bibliography

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[1441] Jordan, A., S.. Haidacher, G.. Hanel, E.. Hartungen, J. Herbig, L.. Märk, R.. Schottkowsky, H.. Seehauser, P.. Sulzer, and T.D.. Märk, "An online ultra-high sensitivity Proton-transfer-reaction mass-spectrometer combined with switchable reagent ion capability (PTR + SRI−MS)", International Journal of Mass Spectrometry, vol. 286, pp. 32 - 38, 2009.
<div>Proton-transfer-reaction mass-spectrometry (PTR-MS) developed in the</div> <div>1990s is used today in a wide range of scientific and technical fields.</div> <div>PTR-MS allows for real-time, online determination of absolute concentrations</div> <div>of volatile (organic) compounds (VOCs) in air with high sensitivity</div> <div>(into the low pptv range) and a fast response time (in the 40&ndash;100 ms</div> <div>time regime). Most PTR-MS instruments employed so far use an ion</div> <div>source consisting of a hollow cathode (HC) discharge in water vapour</div> <div>which provides an intense source of proton donor H3O+ ions. As the</div> <div>use of other ions, e.g. NO+ and O2+, can be useful for the identification</div> <div>of \{VOCs\} and for the detection of \{VOCs\} with proton affinities</div> <div>(PA) below that of H2O, selected ion flow tube mass spectrometry</div> <div>(SIFT-MS) with mass selected ions has been applied in these instances.</div> <div>SIFT-MS suffers, however, from at least two orders lower reagent</div> <div>ion counts rates and therefore SIFT-MS suffers from lower sensitivity</div> <div>than PTR-MS. Here we report the development of a PTR-MS instrument</div> <div>using a modified \{HC\} ion source and drift tube design, which allows</div> <div>for the easy and fast switching between H3O+, NO+ and O2+ ions produced</div> <div>in high purity and in large quantities in this source. This instrument</div> <div>is capable of measuring low concentrations (with detection limits</div> <div>approaching the ppqv regime) of \{VOCs\} using any of the three reagent</div> <div>ions investigated in this study. Therefore this instrument combines</div> <div>the advantages of the PTR-MS technology (the superior sensitivity)</div> <div>with those of SIFT-MS (detection of \{VOCs\} with \{PAs\} smaller</div> <div>than that of the water molecule and the capability to distinguish</div> <div>between isomeric compounds). We will first discuss the setup of this</div> <div>new PTR+SRI-MS mass spectrometer instrument, its performance for</div> <div>aromates, aldehydes and ketones (with a sensitivity of up to nearly</div> <div>1000 cps/ppbv and a detection limit of about several 100&amp;#xa0;ppqv)</div> <div>and finally give some examples concerning the ability to distinguish</div> <div>structural isomeric compounds.&nbsp;</div>

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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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