Petroleomic by Mass Spectrometry of Geochemical Biomarkers of Polar and Nonvolatile Crude Oil Fractions: Fourier Transform Ion Cyclotron Resonance Versus High‐Field Orbitrap

Despite reduced performance in formula assignments as compared to FT-ICR, HFO successfully distinguished crude oils of different geochemical origins. The present results indicate therefore that HFO, although displaying inferior performance than FT-ICR, particularly above m/z 400, still displays good enough mass resolution and accuracy sufficient to provide high quality petroleomic data normally required in most, if not all, common MS petroleomic investigations.