Scientific Publications

Results and insights from fundamental research with PTR-MS instruments produced and developed by IONICON Analytik.

Books of Abstracts of the International PTR-MS Conferences

Contributions - 3^rd (2007) International Conference on Proton Transfer Reaction Mass Spectrometry and Its Applications.
Publisher: University of Innsbruck, Institut für Ionenphysik, A. Hansel, T.Märk (5mb .pdf).

Contributions - 2^nd (2005) International Conference on Proton Transfer Reaction Mass Spectrometry and Its Applications.
Publisher: University of Innsbruck, Institut für Ionenphysik, A. Hansel, T.Märk (3.6mb .pdf).

Contributions - 1^st (2003) International Conference on Proton Transfer Reaction Mass Spectrometry and Its Applications.
Publisher: University of Innsbruck, Institut für Ionenphysik, A. Hansel, T.Märk (8.6mb .pdf).

PTR-MS Reviews

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.
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W. Lindinger, A. Hansel, A. Jordan: On-line monitoring of volatile organic compound at pptv levels by means of Proton-Transfer-Reaction Mass Spectrometry (PTR-MS); Medical applications, food control, and environmental research (1998).
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PTR-MS Publication List

The list below, hosted and updated by IONICON, predominately covers the application areas of instrumentation, technology, environmental research and food & flavor science, but is open to all PTR-MS related topics and we're looking for your results! Please webptrms.com (submit your abstract).

An up-to-date list with PTR-MS relevant publications of the University of Innsbruck can be accessed here.

Publications related to PTR-MS in medicine and biotechnology can be found here.

2008

M. Bunge, N. Araghipour, T. Mikoviny, J. Dunkl, R. Schnitzhofer, A. Hansel, F. Schinner, A. Wisthaler, R. Margesin, T. D. Märk: On-line monitoring of microbial volatile metabolites by Proton Transfer Reaction-Mass Spectrometry, Applied & Environmental Microbiology 74 (2008), 2179-2186.
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N. Araghipour, J. Colineau, A. Koot, W. Akkermans, J. M. Rojas, J. Beauchamp, A. Wisthaler, T. D. Märk, G. Downey, C. Guillou, L. Mannina, S. van Ruth: Geographical origin classification of olive oils by PTR-MS. Food Chemistry 1/108 (2008), 374-383.
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S. van Ruth, A. Koot, W. Akkermans, N. Araghipour, M. Rozijn, M. Baltussen, A. Wisthaler, T. D. Märk, R. Frankhuizen: Butter and butter oil classification by PTR-MS. Eur. Food Res. Technol. 1/227 (2008), 307-317.
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C. Lindinger, D. Labbe, P. Pollien, A. Rytz, M. A. Juillerat, C. Yeretzian, I. Blank, When Machine Tastes Coffee: Instrumental Approach To Predict the Sensory Profile of Espresso Coffee. Anal. Chem. (2008).
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2007

C. J . Weschler, A. Wisthaler, S. Cowlin, G. Tamas, P. Strom-Tejsen, A. T. Hodgson, H. Destaillats, J. Herrington, J. Zhang, W. W. Nazaroff, Ozone-Initiated Chemistry in an Occupied Simulated Aircraft Cabin. Environ. Sci. Technol. 41 (2007), 6177-6184.
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E. Aprea, F. Biasioli, S. Carlin, G. Versini, T. D. Märk, F. Gasperi, Rapid white truffle headspace analysis by proton transfer reaction mass spectrometry and comparison with solid-phase microextraction coupled with gas chromatography/mass spectrometry. Rapid Commun. Mass Spectrom. 21 (2007), 2564–2572.
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P. M. Granitto, F. Biasioli, E. Aprea, D. Mott, C. Furlanello, T. D. Märk, F. Gasperi, Rapid and non-destructive identification of strawberry cultivars by direct PTR-MS headspace analysis and data mining techniques. Sensors and Actuators B: Chemical 2/121 (2007), 379-385.
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E. Aprea, F. Biasioli, F. Gasperi, D. Mott, F. Marini, T. D. Märk, Assessment of Trentingrana cheese ageing by proton transfer reaction-mass spectrometry and chemometrics. International Dairy Journal 3/17 (2007), 226-234.
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A. Wisthaler, P. Strom-Tejsen, L. Fang, T. J. Arnaud, A. Hansel, T. D. Märk, D. P. Wyon, PTR-MS Assessment of Photocatalytic and Sorption-Based Purification of Recirculated Cabin Air during Simulated 7-h Flights with High Passenger Density. Environ. Sci. Technol. 1/41 (2007), 229-234.
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2006

Graus, M., Hansel, A., Wisthaler, A., Lindinger, C., Forkel, R., Hauff, K., Klauer, M., Pfichner, A., Rappenglück, B., Steigner, D. and Steinbrecher, R., 2005. A Relaxed-Eddy-Accumulation Method for the Measurement of Isoprenoid Canopy-Fluxes using an Online Gas-Chromatographic Technique and PTR-MS Simultaneously. Atmospheric Environment. In Press, Corrected Proof.
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Grabmer, W., Cojocariu, C., Graus, M., Kreuzwieser, J., Rennenberg, H., Steigner, D., Steinbrecher, R., Wisthaler, A. and Hansel, A., 2005. VOC Emissions from Norway Spruce (Picea abies) in an Enclosure Measurement Study. Atmospheric Environment. In Press, Corrected Proof.
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Müller, K., Haferkorn, S., Grabmer, W., Wisthaler, A., Hansel, A., Kreuzwieser, J., Cojocariu, C., Rennenberg, H. and Herrmann, H., Biogenic carbonyl compounds within and above a coniferous forest in Germany. Atmospheric Environment. In Press, Corrected Proof.
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E. Aprea, F. Biasioli, G. Sani, C. Cantini, T. D. Märk, F. Gasperi, Proton Transfer Reaction-Mass Spectrometry (PTR-MS) Headspace Analysis for Rapid Detection of Oxidative Alteration of Olive Oil. J. Agric. Food Chem. 20/54 (2006), 7635-7640.
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Biasioli F., Gasperi F., Aprea E., Endrizzi I., Framondino V., Marini F., Mott D., Märk T.D., 2006, Correlation of PTR-MS spectral fingerprints with sensory characterisation of flavour and odour profile of ‘‘Trentingrana’’ cheese. Food Quality and Preference, Vol. 17, 63-75
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Aprea E., Biasioli F., Gasperi F., Märk T.D., van Ruth S., 2006, In vivo monitoring of strawberry flavour release from model custards: effect of texture and oral processing. Flavour and Fragrance Journal, Vol. 21, 53-58
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Märk J., Pollien P., Lindinger C., Blank I., Märk T., 2006, Quantitation of Furan and Methylfuran Formed in Different Precursor Systems by Proton Transfer Reaction Mass Spectrometry. J. Agric. Food Chem., Vol. 54, 2786-2793

Dunphy P., Butler, I., Qvist I., Jordan A., 2006. Real Time Volatile Flavor Release Monitoring and its Flavor/Food Application Using Proton Transfer Reaction Mass Spectrometry – Understanding of how aroma compounds interact with and are released from simple and complex foods. Perfumer&Flavorist, 31, 2006.
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2005

Wisthaler A., Tamas G., Wyon D.P., Strom-Tejsen P., Space D., Beauchamp J., Hansel A, Märk T.D., Weschler C.J., 2005, Products of Ozone-Initiated Chemistry in a Simulated Aircraft Environment. Environ. Sci. Technol., Vol. 39, 4823-4832

Lindinger C., Pollien P., Ali S., Yeretzian C., Blank I., Märk T., 2005. Unambiguous Identification of Volatile Organic Compounds by Proton-Transfer Reaction Mass
Spectrometry Coupled with GC/MS. Analytical Chemistry, Vol. 77, No. 13, July 1, 2005.

Zini E., Biasioli F., Gasperi F., Mott D., Aprea E., Märk T.D., Patocchi A., Gessler C., Komjanc M., 2005. QLT mapping of volatile compounds in ripe apples detected by proton transfer reaction-mass spectrometry. Euphytica, Vol. 145, 269-279

Pegoraro E., Abrell L., Van Haren J., Barron-Gafford G., Grieve K. A., Malhi Y., Murthy R. and Lin G. A., 2005. The effect of elevated atmospheric CO2 and drought on sources and sinks of isoprene in a temperate and tropical rainforest mesocosm. Global Change Biology (2005) 11, 1234–1246.

Mestres, M., Moran, N., Jordan, A., Buettner, A., 2005. Aroma Release and Retronasal Perception during and after Consumption of Flavored Whey Protein Gels with Different Textures. 1. in Vivo Release Analysis, J. Agric. Food Chem. 2005, 53

Klemm, O., Held, A., Forkel, R., Gasche, R., Kanter, H.-J., Rappenglück, B., Steinbrecher, R., Müller, K., Plewka, A., Cojocariu, C., Kreuzwieser, J., Valverde-Canossa, J., Schuster, G., Moortgat, G. K., Graus, M. and Hansel, A., 2005. Experiments on forest/atmosphere exchange: Climatology and fluxes during two summer campaigns in NE Bavaria. Atmospheric Environment submitted.

Forkel, R., Rappenglück, B., Steinbrecher, R., Klemm, O., Held, A., Graus, M. and Grabmer, W., 2005. Modelling of trace gas exchange and gas phase chemistry for a Norway spruce forest with the coupled 1-dimensional Canopy Atmospheric Chemistry Emission model CACHE. Atmospheric Environment submitted.

Tholl, D., Boland, W., Hansel, A., Loreto, F., Röse, U. S. R. and Schnitzler, J.-P., 2005. Practical approaches to plant volatile analysis. The Plant Journal accepted.

Beauchamp, J., Wisthaler, A., Hansel, A., Kleist, E., Miebach, M., Niinemets, U., Schurr, U. and Wildt, J., 2005. Ozone induced emissions of biogenic VOC from tobacco: relationships between ozone uptake and emission of LOX products.
Plant, Cell and Environment 28, 1334-1343.

Jacob, D. J., Field, B. D., Li, Q., Blake, D. R., de Gouw, J. A., Warneke, C., Hansel, A., Wisthaler, A., Singh, H. B. and Guenther, A., 2005. Global budget of methanol: Constraints from atmospheric observations. Journal of Geophysical Research 110, 1-17.

Spirig, C., Neftel, A., Ammann, C., Dommen, J., Grabmer, W., Thielmann, A., Schaub, A., Beauchamp, J., Wisthaler, A. and Hansel, A., 2005. Eddy covariance flux measurements of biogenic VOCs during ECHO 2003 using proton transfer reaction mass spectrometry. Atmospheric Chemistry and Physics 5, 465-481.

Vinogradov, P. S., Borisenko, D. M., Hansel, A., Taucher, J., Ferguson, E. E. and Lindinger, W., 2005. Kinetics of secondary ion complexes in O2.+CH3CN and Xe.+CH3CN systems: Formation of nonprotonated ion complexes of acetonitrile. International Journal of Mass Spectrometry 243, 127-134.

Vinogradov, P. S., Borisenko, D. M., Hansel, A., Taucher, J., Ferguson, E. E. and Lindinger, W., 2005a. Association and charge transfer reactions of Xe.+ and O2.+ with acetonitrile. International Journal of Mass Spectrometry 243, 135-140.
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2004

Yeretzian C., Pollien P., Lindinger C., Ali S, 2004. Individualization of Flavor Preferences: Toward a Consumer-centric and Individualized Aroma Science. Comprehensive Reviews in Food Science and Food Safety, Vol.3, 2004.

Steeghs M., Pal Bais H., de Gouw J., Goldan P., Kuster W., Northway M., Fall R. and Vivanco J. M., 2004. Proton-Transfer-Reaction Mass Spectrometry as a New Tool for Real Time Analysis of Root-Secreted Volatile Organic Compounds in Arabidopsis. Plant Physiology , May 2004, Vol. 135, 47-58.

F. Biasioli, F. Gasperi, G. Odorizzi, E. Aprea, D. Mott, F. Marini, G. Autiero, G. Rotondo and T.D. Märk, Applicabilita del PTR-MS al controllo degli odori negli impianti per il trattamento dei rifiuti, Rivista Rifiuti Solidi 18 (2004) 220- 229

N. LaPorta, F. Biasioli, F. Gasperi and T.D. Märk, Discrimination of Heterobasidion annosumISGs by elavuation of volatile organic compounds, IOBC/wprs Bulletin 27 (2004) 381-384

F. Biasioli, F. Gasperi, G. Odorizzi, E. Aprea, D. Mott, F. Marini, G. Autiero, G. Rotondo and T.D. Märk, PTR-MS monitoring of odour emissions from composting plants. Int. J. Mass Spectrom. 239 (2004) 103-109

E. Boscaini, M.L. Alexander, P. Prazeller and T.D. Märk, Membrane inlet proton transfer reaction mass spectrometry (MI-PTRMS) for direct measurements of VOCs in water. Int. J. Mass Spectrom. 239 (2004) 171-177

E. Boscaini, M.L. Alexander, P. Prazeller and T.D. Märk, Investigation of fundamental physical properties of a polydimethylsiloxane (PDMS) membrane using a proton transfer reaction mass spectrometer (PTRMS). Int. J. Mass Spectrom. 239 (2004) 179-186

D. Jaksch, E. Hartungen, T. Mikoviny, G. Abel and T.D. Märk, Quality control of a herb extract using PTR-MS. Int. J. Mass Spectrom. 239 (2004) 203-207

D. Jaksch, R. Margesin, T. Mikoviny, J.D. Skalny, E. Hartungen, F. Schinner, N.J. Mason and T.D. Märk, The effect of ozone treatment on the microbial contamination of pork meat measured by detecting the emissions using PTR-MS and by enumeration of microorganisms. Int. J. Mass Spectrom. 239 (2004) 209-214

E. Boscaini, T. Mikoviny, A. Wisthaler, E. von Hartungen and T.D. Märk, Characterization of wine with PTR-MS. Int. J. Mass Spectrom. 239 (2004) 215-219

E. von Hartungen, A. Wisthaler, T. Mikoviny, D. Jaksch, E. Boscaini, P.J. Dunphy and T.D. Märk, Proton-transfer-reaction mass spectrometry (PTR-MS) of carboxylic acids Determination of Henry’s law constants and axillary odour investigations. Int. J. Mass Spectrom. 239 (2004) 243-248

International Journal of Mass Spectrometry, Special Issue on Proton Transfer Reaction Mass Spectrometry; Volume 239, Nos. 2-3, 15 December 2004, ISSN 1387-3806, Competing volume 239; Edited by A. Hansel and T.D. Märk

Beauchamp, J., Wisthaler, A., Grabmer, W., Neuner, C., Weber, A. and Hansel, A., 2004. Short-term measurements of CO, NO, NO2, organic compounds and PM10 at a motorway location in an Austrian valley. Atmospheric Environment 38, 2511-2522.

Grabmer, W., Graus, M., Lindinger, C., Wisthaler, A., Rappenglück, B., Steinbrecher, R. and Hansel, A., 2004. Disjunct eddy covariance measurements of monoterpene fluxes from a Norway spruce forest using PTR-MS. International Journal of Mass Spectrometry 239, 111-115.

Graus, M., Schnitzler, J.-P., Hansel, A., Cojocariu, C., Rennenberg, H., Wisthaler, A. and Kreuzwieser, J., 2004. Transient Release of Oxygenated Volatile Organic Compounds during Light-Dark Transitions in Grey Poplar Leaves. Plant Physiology 134, 1967-1974.

Hansel, A., 2004. PTR-MS: From Physics to the Market Place. Europhysics News 35

Schnitzler, J.-P., Graus, M., Kreuzwieser, J., Heizmann, U., Rennenberg, H., Wisthaler, A. and Hansel, A., 2004. Contribution of Different Carbon Sources to Isoprene Biosynthesis in Poplar Leaves. Plant Physiology 135, 152-160.

Spirig, C., Neftel, A., Ammann, C., Dommen, J., Grabmer, W., Thielmann, A., Schaub, A., Beauchamp, J., Wisthaler, A. and Hansel, A., 2004. Flux measurements of biogenic VOCs during ECHO 2003. Atmospheric Chemistry and Physics Discussions 4, 6603-6643.

Steinbrecher, R., Rappenglück, B., Hansel, A., Graus, M., Klemm, O., Held, A., Wiedensohler, A. and Nowak, A., 2004. Vegetation-Atmospheric Interactions: The Emissions of Biogenic Volatile Organic Compounds (BVOC) and their Relevance to Atmospheric Particle Dynamics in Matzner, E. (Ed): Biogeochemistry of Forested Catchments in a Changing Environment, Ecological Studies 172. Springer Verlag, Berlin, Heidelberg.

Tani, A., Hayward, S., Hansel, A. and Hewitt, C. N., 2004. Effect of water vapour pressure on monoterpene measurements using proton transfer reaction-mass spectrometry (PTR-MS). International Journal of Mass Spectrometry 239, 161-169.
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2003

Pollien P., Lindinger C., Yeretzian C., Blank I, 2003. Proton Transfer Reaction Mass Spectrometry, a Tool for On-Line Monitoring of Acrylamide Formation in the Headspace of Maillard Reaction Systems and Processed Food. Analytical Chemistry, 2003.

Guazzotti, S. A., Suess, D. T., Coffee, K. R., Quinn, P. K., Bates, T. S., Wisthaler, A., Hansel, A., Ball, W., Dickerson, R. R., Neusüß, C., Crutzen, P. J. and Prather, K. A., 2003. Characterization of carbonaceous aerosols outflow from India and Arabia: Biomass/biofuel burning and fossil fuel combustion. J. Geophys. Res. 108, 4485.

Karl, T., Hansel, A., Märk, T., Lindinger, W. and Hoffmann, D., 2003. Trace gas monitoring at the Mauna Loa Baseline Observatory using Proton-Transfer Reaction Mass Spectrometry. International Journal of Mass Spectrometry 223-224, 527-538. (http://acd.ucar.edu/~tomkarl/mlo03.pdf)

Salisbury G., Williams J., Holzinger R., Gros V., Mihalopoulos N., Vrekoussis M., Sarda-Estève R., Berresheim H., von Kuhlmann R., Lawrence M. and Lelieveld J., 2003. Ground-based PTR-MS measurements of reactive organic compounds during the MINOS campaign in Crete, July–August 2001. Atmos. Chem. Phys., 3, 925–940, 2003.

Karl, T., Guenther, A., Spirig, C., Hansel, A. and R. Fall, 2003. Seasonal variation of biogenic VOC emissions above a mixed hardwood forest in northern Michigan,. Geophys. Res. Lett. 30, 2186.

Singer, W., Hansel, A., Wisthaler, A., Lindinger, W. and Ferguson, E. E., 2003. Vibrational quenching of NO+(v) ions by Ar collisions. International Journal of Mass Spectrometry 223-224, 757-762.

Wert, B. P., Trainer, M., Fried, A., Ryerson, T. B., Henry, B., Potter, W., Angevine, W. M., Atlas, E., Donnelly, S. G., Fehsenfeld, F. C., Frost, G. J., Goldan, P. D., Hansel, A., Holloway, J. S., Hübler, G., Kuster, W. C., Jr., D. K. N., Neuman, J. A., Parrish, D. D., Schauffler, S., Stutz, J., Sueper, D. T., Wiedinmyer, C. and Wisthaler, A., 2003. Signatures of Alkene Oxidation in Airborne Formaldehyde Measurements During TexAQS 2000. J. Geophys. Res. 108, 4104.

A. K. Hawes, S. Solomon, R. W. Portmann, J. S. Daniel, A. O. Langford, H. L. Miller, Ch. S. Eubank, P. Goldan, Ch. Wiedinmyer, E. Atlas, A. Hansel, and A. Wisthaler, Airborne Observations of Vegetation and Implications for Biogenic Emission Characterization, J.Env. Monit. 5, 977-983, 2003

S. A. Guazzotti, D. T. Suess, K. R. Coffee, P. K. Quinn, T. S. Bates, A. Wisthaler, A. Hansel, W. Ball, R. R. Dickerson, C. Neusüß, P .J. Crutzen, and K. A. Prather, Characterization of carbonaceous aerosols outflow from India and Arabia: Biomass/biofuel burning and fossil fuel combustion, J. Geophys. Res. 108(D15), 4485, doi: 10.1029/2002JD003277 (2003)

D. Mayr, R. Margesin, E. Klingsbichel, E. Hartungen, D. Jenewein, F. Schinner, and T. D. Märk, Rapid Detection of Meat Spoilage by Measuring Volatile Organic Compounds by Using Proton Transfer Reaction Mass Spectrometry. Appl. Environ. Microbiol. 69 (2003) 4697-4705

M. Alexander, E. Boscaini, W. Lindinger and T.D. Märk, Membrane introduction proton-transfer reaction mass spectrometry. Int. J. Mass Spectrom. 223-224 (2003) 763-770

D. Mayr, T.D. Märk, W. Lindinger, H. Brevard and C. Yeretzian, Breath-by-breath analysis of banana aroma by proton transfer reaction mass spectrometry. Int. J. Mass Spectrom. 223-224 (2003) 743-756

T. Karl, A. Hansel, T.D. Märk, W. Lindinger and D. Hoffmann, Trace gas monitoring at the Mauna Loa Baeline Observatory using Proton-Transfer Reaction Mass Spectrometry. Int. J. Mass Spectrom. 223-224 (2003) 527-538

D. Mayr, R. Margesin, F. Schinner and T.D. Märk, Detection of the spoiling of meat using PTR-MS. Int. J. Mass Spectrom. 223-224 (2003) 229-235

F. Biasioli, F. Gasperi, E. Aprea, L. Colato, E. Boscaini and T.D. Märk, Fingerprinting mass spectrometry by PTR-MS: heat treatment vs. pressure treatment of red orange juice - a case study. Int. J. Mass Spectrom. 223-224 (2003) 343-353

Dagmar Mayr, Ph.D. thesis: Aroma Analysis and Quality Control of Food Using Highly Sensitive Analytical Methods. March 2003

E. Boscaini, S. van Ruth, F. Biasioli, F. Gasperi and T.D. Märk, Gas chromatography-olfactrometry (GC-o) and Proton transfer reaction mass spectrometry (PTR-MS) analysis of the flavor profile of Grana Padano, Parmigiano Reggiano and Grana Trentino cheese, J. Agric. Food chemistry, in print (2003)
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2002

A. Wisthaler, A. Hansel, R. R. Dickerson, and P. J. Crutzen, Organic trace gas measurements by PTR-MS during INDOEX 1999, J. Geophys. Res., 107(D19), 8024, doi:10.1029/2001JD000576 (2002)

C. A. Stroud, J. M. Roberts, E. J. Williams, D. Heried, D. D. Parish, W. Angevine, and F. C. Fehsenfeld, A. Wisthaler and A. Hansel, M. Martinez-Harder, H. Harder and W. H. Brune, B. Alicke and J. Stutz, A. B. White, Nighttime Isoprene trends at an urban forested site during the 1999 Southern Oxidant Study, J. Geophys. Res. 107(D16), ACH 7-1, doi: 10.1029/2001JD000959 (2002)

J. Kreuzwieser, M. Graus, A. Wisthaler, A. Hansel, H. Rennenberg, J.-P. Schnitzler, Xylem-transported glucose as an additional carbon source for leaf isoprene formation in Quercus robur L., New Phytologist, 156, 171-178 (2002)

Elena Boscaini, Ph.D. thesis: Comparison of various high sensitivity analytical methods (PTR-MS, MIMS, GC-O, SA) and application to food analysis. November 2002

F. Biasioli, F.Gasperi, E.Aprea, L.Paradisi, E.Boscaini and T.D.Märk, Misure di volatili organici con il PTRMS: caratteristici ed esempi applicativi, Rapporti G.S.I.S.R.N.,117-02/02 (2002)

F.Biasioli, F.Gasperi, E.Aprea, L.Colato, E.Boscaini and T.D.Märk, Application of PTR-MS to the characterization of pasteurization processes of beverages, Ricerce e innovazioni nell ' industria alimentare, Vol.V (2002) 985-991.
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2001

A. T. J. de Laat, J. A. de Grow, J. Lelieveld and A. Hansel, Model analysis of trace gas measurements and pollution impact during INDOEX, J. Geophys. Res., 106, 22, 28469-28480 (2001).

A. Wisthaler, A. Hansel, R. R. Dickerson, and P. J. Crutzen, Organic trace gas measurements by PTR-MS during INDOEX 1999, J. Geophys. Res., in press (2001).

A. Wisthaler, N. R. Jensen, R. Winterhalter, W. Lindinger and J. Hjorth, Measurements of Acetone and other Gas Phase Product Yields from the OH-initiated Oxidation of Terpenes by Proton-Transfer-Reaction Mass Spectrometry (PTR-MS), Atmos. Environ., 35, 6151-6191 (2001).

D. Sprung, C. Jost, T. Reiner, A. Hansel, and A. Wisthaler, Airborne measurements of acetone and acetonitrile in the tropical Indian Ocean boundary layer and free troposphere: Aircraft-based intercomparison of AP-CIMS and PTR-MS measurements, J. Geophys. Res., 106, 22, 28511-28528 (2001).

R. Holzinger, A. Jordan, A. Hansel, W. Lindinger, Methanol measurements in the lower troposphere near Innsbruck (047° 16'N; 011°24'E), Austria, Atmos. Environ., 35, 2525-2532 (2001).

J. Lelieveld, P. J. Crutzen, V. Ramanathan, M.O. Andreae, C.A.M. Brenninkmeijer, T. Campos, G.R. Cass, R.R. Dickerson, H. Fischer, J.A. de Gouw, A. Hansel, A. Jefferson, D. Kley, A.T.J. de Laat, S. Lal, M.G. Lawrence, J.M. Lobert, O. Mayol-Bracero, A.P. Mitra, T. Novakov, S.J. Olmans, K.A. Prather, T. Reiner, H. Rodhe, H.A. Scheren, D. Sikka, J. Williams, The Indian Ocean Experiment: Widspread Air Pollution from South and Southeast Asia, Science, 291, 1031-1036 (2001).

R. Holzinger, A. Jordan, A. Hansel, and W. Lindinger, Automobile emissions of acetonitrile: Assessment of its contribution to the global source, J. Atmos. Chem., 38, 187-193 (2001).

M.O. Andreae, P. Artaxo, H. Fischer, S.R. Freitas, J.-M. Grégoire, A. Hansel, P. Hoor, R. Kormann, R. Krejci, L. Lange, J. Lelieveld, W. Lindinger, K. Longo, W. Peters, M. de Reus, B. Scheeren, M.A.F. Silva Dias, J. Ström, P.F.J. van Velhoven, and J. Williams, Transport of biomass burning smoke to the upper troposphere by deep convection in the equatorial region, Geophys. Res. Lett., 28, 951-954 (2001).

J. Williams, U. Pöschl, P. J. Crutzen, A. Hansel, R. Holzinger, C. Warneke, W. Lindinger J. Lelieveld, An Atmospheric Chemistry Interpretation of Mass Scans Obtained from a Proton Transfer Mass Spectrometer flown over the Tropical Rainforest of Surinam, J. Atmos. Chem. 38, 133-166 (2001).

U. Pöschl, J. Williams, P. Hoor, H. Fischer, P. J. Crutzen, C. Warneke, R. Holzinger, A. Hansel, A. Jordan, W. Lindinger, H. A. Scheeren, W. Peters, J. Lelieveld, High Acetone Concentrations throughout the 0-12 km Altitude Range over the Tropical Rainforest in Surinam, J. Atmos. Chem. 38, 115-132 (2001).

C. Warneke, R. Holzinger, A. Hansel, A. Jordan, and W. Lindinger, U. Pöschl, J. Williams, P. Hoor, H. Fischer, and P.J. Crutzen, H. A. Scheeren, J. Lelieveld, Isoprene and its oxidation products methyl vinyl ketone, methacrolein, and isoprene related peroxides measured on-line over a tropical rain forest in Suriname in March 1998, J. Atmos. Chem. 38, 167-185 (2001).

Lindinger W., Fall R., Karl T. G., 2001. Environmental, Food and Medical Applications of Proton-Transfer-Reaction Mass Spectrometry (PTR-MS). Advances in Gas-Phase Ion Chemistry, Vol. 4, 1–35.
(http://acd.ucar.edu/~tomkarl/ptrmschap.pdf)

Karl T., Crutzen P.-J., Mandl M., Staudinger M., Guenther A., Jordan A., Fall R., Lindinger W.
Variability-lifetime relationship of VOCs observed at the Sonnblick Observatory 1999-estimation of HO-densities. Atmospheric Environment 35 (2001) 5287–5300.
(http://acd.ucar.edu/~tomkarl/karlvar.pdf)
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2000

J. Williams, H. Fischer, G.W. Harris, P.J. Crutzen, and P. Hoor, A. Hansel, R. Holzinger, C. Warneke, and W. Lindinger, B. Scheeren and J. Lelieveld, Varaibilty-lifetime relationship for organic trace gases: A novel aid to compound identification and estimation of HO concentrations, J. Geophys. Res., 105, 20473-20486 (2000).

P.J. Crutzen, J. Williams, U. Pöschl, P. Hoor, H. Fischer, C. Warneke, R. Holzinger, A. Hansel, W. Lindinger, B. Scheeren, J. Lelieveld, High spatial and temporal resolution measurments of primary organics and their oxidation products over the tropical forests of Surinam, Atmos. Environ., 34, 1161-1165 (2000).

A. Hansel and A. Wisthaler, A Method for Real-Time Detection of PAN, PPN and MPAN in Ambient Air, Geophys. Res. Lett. 27, 895-898 (2000).
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1999

A. Boschetti, F. Biasioli, M. van Opbergen, C. Warneke, A. Jordan, R. Holzinger, P. Prazeller, T. Karl, A. Hansel, W. Lindinger, S. Iannotta, PTR-MS real time monitoring of the emission of volatile organic compounds during postharvest aging of berryfruit, Postharvest Biology and Technology 17, 143-151 (1999).

R. Fall, T. Karl, A. Hansel, A. Jordan, and W. Lindinger, Volatile organic compounds emitted after leaf wounding: On-line analysis by proton-transfer-reaction mass spectrometry, J. Geophys. Res. 104, D 13, 15,963-15,974 (1999).

P. Prazeller, T. Karl, A. Jordan, A. Hansel und W. Lindinger, Acetonitril als Biomarker zur Quantifizierung des Passivrauchens, submitted zu Ber. Nat.- med Verein Innsbruck (1999).

R. Holzinger, C. Warneke, A. Hansel, A. Jordan, and W. Lindinger, D.H. Scharffe, G. Schade and P.J. Crutzen, Biomass Burning as a Source of Formaldehyde, Acetaldehyde, Methanol, Acetone, Acetonitrile, and Hydrogen Cyanide, Geophys. Res. Lett., 26, 1161-1164 (1999).

A. Hansel, A. Jordan, C. Warneke, R. Holzinger, A. Wisthaler and W. Lindinger, Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS): On-line monitoring of volatile organic compounds at volume mixing ratios of a few pptv, Plasma Sources Sci. Technol. 8, 332-336 (1999).

C. Warneke, T. Karl, H. Judmaier, A. Hansel, A. Jordan, W. Lindinger and P. J. Crutzen, Acetone, methanol and other partially oxidized volatile organic emissions from dead plant matter by abiological processes: Significance for atmospheric HOx chemistry, Global Biogeochemical Cycles, 13, 9-17 (1999).
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1998

P. Prazeller, T. Karl, A. Jordan, R. Holzinger, A. Hansel, W. Lindinger, Quantification of Passive smoking using proton-transfer-reaction mass spectrometry, Int. J. Mass. Spectrom 179, L1-L4 (1998).

W. Lindinger, A. Hansel, and A. Jordan, Proton-transfer-reaction mass spectrometry (PTR-MS): on-line monitoring of volatile organic compounds at pptv levels, Chemical Society Reviews, 27, 347-354 (1998).

T. Karl, A. Jordan, A. Hansel, R. Holzinger & W. Lindinger, Bezene and Acetonitrile in Smokers and Nonsmokers, Ber. Nat.- med Verein Innsbruck, Band 85 S.7-15 Innsbruck, Okt. (1998).

A. Hansel, A. Jordan, C. Warneke, R. Holzinger and W. Lindinger, Improved Detection Limit of the Proton-transfer-Reaction Mass-Spectrometer: On-line Monitoring of Volatile Organic Compounds at Mixing Ratios of a Few PPTV, Rapid Communications in Mass Spectrometry, 12, 871-875 (1998).

W. Lindinger, A. Hansel and A. Jordan, On-line monitoring of volatile organic compounds at pptv levels by means of Proton-Transfer-Reaction Mass-Spectrometry (PTR-MS): Medical applications, food control and environmental research, Review paper, Int. J. Mass Spectrom. Ion Proc., 173, 191-241 (1998).
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1997

A. Hansel, W. Singer, A. Wisthaler, M. Schwarzmann and W. Lindinger, Energy dependencies of the proton CH2OH+ + H2O, Int. J. Mass Spectrom. Ion Proc.?transfer reactions H3O+ + CH2O 167/168, 697-703, (1998).
1997

A. Jordan, A. Hansel, C. Warneke, R. Holzinger, P. Prazeller, W. Vogel and W. Lindinger, On-line Spurengasanalyse im ppt-Bereich und ihre Anwendungen auf Gebieten der Medizin, Lebensmittelforschung und Luftqualität, Ber. nat. -med. Verein Innsbruck Band 84 S. 7-17 Innsbruck, Okt. (1997).

J. Taucher, A. Hansel, A. Jordan, R. Fall, J. H. Futrell and W. Lindinger, Detection of Isoprene in Expired Air from Human Subjects using Proton-transfer-reaction Mass Spectrometry, Rapid Communications in Mass Spectrometry, 11, 1230-1234 (1997).

W. Lindinger, J. Taucher, A. Jordan, A. Hansel and W. Vogel, Endogenous Production of Methanol after the Consumption of Fruit, Alcoholism: Clinical and Experimental Research, 21, 939-943 (1997).

W. Lindinger and A. Hansel, Analysis of trace gases at ppb levels by proton transfer reaction mass spectrometry (PTR-MS), Plasma Sources Sci. Technol. 6, 111-117 (1997).
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1996

J. Taucher, A. Hansel, A. Jordan, and W. Lindinger, Analysis of Compounds in Human Breath after Ingestion of Garlic using Proton-Transfer-Reaction-Mass Spectrometry, Journal of Agricultural and Food Chemistry, 44, 3778-82 (1996).

C. Warneke, J. Kuczynski, A. Hansel, A. Jordan, W. Vogel, A. Lindinger, Proton transfer reaction mass spectrometry (PTR-MS): propanol in human breath, Int. J. of Mass Spectrom. and Ion Processes, 154, 61-70 (1996).
1995

A. Hansel, A. Jordan, R. Holzinger, P. Prazeller W. Vogel, W. Lindinger, Proton transfer reaction mass spectrometry: on-line trace gas analysis at ppb level, Int. J. of Mass Spectrom. and Ion Processes, 149/150, 609-619 (1995).

A. Jordan, A. Hansel, R. Holzinger, W. Lindinger, Acetonitrile and benzene in the breath of smokers and non-smokers investigated by proton transfer reaction mass spectrometry (PTR-MS), Int. J. of Mass Spectrom. and Ion Processes, 148, L1-L3 (1995).

J. Taucher, A. Lagg, A. Hansel, W. Vogel, and W. Lindinger, Methanol in Human Breath, Alcoholism: Clinical and Experimental Research, 19, 1147-1150 (1995).
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The technology
PTR-MS applications
The PTR-MS product range