FT-ICR MS offers at least 10X times higher mass resolving power than any other broadband mass analyzer, and is thus the mass analyzer of choice for complex mixture analysis. Accurate (sub-ppm) mass measurement yields elemental composition, numbers of N, O, and S (hetero) atoms (i.e., compound "class"), number of rings plus double bonds (DBE, or "type"), and carbon number distribution (yielding the degree of alkylation) for molecules up to ~1,500 Da. We have assigned more than 125,000 peaks in a single petroleum 9.4 T FT-ICR mass spectrum. Data may be visualized from various graphical images scaled according to ion relative abundance: e.g., class distribution, Kendrick plot, van Krevelen plot, DBE vs. carbon number, etc. Environmental applications include characterization of oil:water emulsions, alternative fuels, crude oil plumes and chemical evolution of oil spills. This talk will report recent FT-ICR MS instrumentation developments, including imprinted polymers to extract naphthenic acids, and on-line LC FT-ICR MS at 21 tesla (highest field for ICR) applied to characterization of complex organic mixtures.<br/>

Widening the window for environmental analysis: On-line HPLC monitored by 21 tesla Fourier transform ion cyclotron resonance mass spectrometry

2019 Spring National Meeting

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