PTR-TOF: Real Time Analysis of Volatile and Condensed Organics on a Molecular Composition Level

MARKUS MUELLER, Tobias Reinecke, Todd Rogers, IONICON Analytik GmbH., Innsbruck, Austria

     Abstract Number: 645
     Working Group: Exhibitor and Instrument Application Showcase

Abstract
IONICON is the leading producer of real-time trace gas analyzers based on Proton Transfer Reaction – Mass Spectrometry (PTR-MS). Without sample pre-treatment, our extremely sensitive PTR-TOF systems allow for quantitative detection of analytes on a molecular compositions composition level. Limits of detections are < 1 pptv for volatile organic compounds and, when the system is coupled to our genuine CHARON particle inlet, < 100 pg m-³ for condensed organics.

Our instruments are used in atmospheric and environmental research, indoor air analysis, engine emissions testing, food & flavor science, illicit substances detection, medical breath analysis and many more. Air quality monitoring networks and mobile laboratories benefit from our dedicated, robust trace VOC analyzers for mobile and field deployment. For this Application Showcase we will give a short introduction to PTR-MS, including basic operation principles and application examples in aerosol research.

With our PTR-TOF 4000 instrument we take the slogan of this session ‘Scientists doing Experiments drinking Coffee’ almost literally by performing a real-time measurement of coffee headspace. Similar to organic aerosol, coffee headspace is a very complex sample with a plethora of chemical information. The interpretation of such complex mass spectra is not trivial but with the new IONICON Data Analyzer (IDA) the audience is guided through all the needed data-analysis steps to get from raw data to quantitative time-series for compounds of interest.

Both experienced instrument developers and application scientists will be present during this showcase to engage with the audience, discuss experiences from measurement campaigns and answer all questions.