Here we present a novel way of operating a (slightly modified) PTR-MS instrument, i.e. the possibility of switching between H3O+, NO+, O2+, Xe+ and Kr+ as reagent ions which permits the analysis of virtually all existing trace substances including inorganic species. Amongst several other examples we will present data of standard gases (see figure for benzene ionized via charge transfer from Kr+, as one example) and of the well-known fumigation gas SO2F2, which could not be analyzed with PTR-MS so far.

Analysis and quantification of inorganic compounds utilizing an enhanced proton-transfer-reaction mass spectrometry (PTR-MS) instrument

245th National Meeting (2013)

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