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

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• Sylvia Miller, Open University/University of Birmingham
• Friday 19 March 2010, 16:00-16:45
• Watson 310.

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.

This talk is included in these lists:

• Molecular and Medical Physics Seminar Series
• Watson 310
• What's on in Physics?

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