We have developed an analytical method for the rapid and detailed chemical characterization of distillate fuels using high-resolution field ionization mass spectrometry (HR-FIMS). Field ionization produces only the molecular ions for most compounds and is therefore particularly useful for the analysis. A vintage AEI MS-9 mass spectrometer was refurbished and modified to house an SRI volcano-style field ionizer. By operating the mass spectrometer at a resolving power of 3000, all ...
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