VOC flux determinations require detection at part-per-trillion levels coupled with very high sampling rates (typically at least two data points per second per compound).  Syft Technologies’ Voice200ultra instruments easily fulfill these requirements.


Professor Lucy Carpenter of the prestigious Wolfson Atmospheric Chemistry Laboratories (WACL) at the University of York, United Kingdom, recently selected Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) instrumentation for measuring volatile organic compound (VOC) fluxes in urban environments. VOC flux determinations require detection at part-per-trillion levels coupled with very high sampling rates (typically at least two data points per second per compound).  Syft Technologies’ Voice200ultra instruments easily fulfill these requirements.

Professor Carpenter has made a very bold move in selecting SIFT-MS for this extremely demanding research, because the decision charts a new course for analysis of VOC fluxes.  Unlike other direct, high-sensitivity mass spectrometry techniques, SIFT-MS utilizes multiple rapidly switchable reagent ions (switching occurs in less than 10 milliseconds).  The best reagent ion can be used for each compound within the 0.5-second measurement window.  This provides greatly enhanced selectivity, especially when coupled with the ultra-soft ionization utilized in SIFT-MS, which produces less fragmentation than drift tube techniques.  The additional reagent ions also enable SIFT-MS to analyze a wider range of compounds, including small chlorinated species.

You can read more about the ground-breaking SIFT-MS research planned by Professor Carpenter here.

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