University of Birmingham > Talks@bham > Molecular and Medical Physics Seminar Series > Where Physics Meets Biology: Some applications of Proton Transfer Reaction Mass Spectrometry (PTR-MS)

Where Physics Meets Biology: Some applications of Proton Transfer Reaction Mass Spectrometry (PTR-MS)

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If you have a question about this talk, please contact Dan Kirby.

PTR -MS uses a proton-donor, H3O +, as the ionising agent to detect volatile organic compounds. It has several advantages over other MS techniques including a ‘softer’ ionisation process leading to less fragmentation and hence simpler spectra to analyse; none of the components of air react in the instrument, so air can be used as a carrier medium; and there is often no need for the pre-preparation of samples.

The Kore instrument I use has a time-of-flight (TOF) detector. I have used this PTR -TOF-MS to investigate VOCs from pork, pears and bacteria and I will be explaining how and why this has so far been the focus of my research.

This talk is part of the Molecular and Medical Physics Seminar Series series.

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