(59al) Analysis of Polar Compounds in Essential Bio-Oils By Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

 Six essential oils obtained of Colombian species were analyzed by Fourier transform ion cyclotron resonance mass spectrometry coupled to negative electrospray ionization (ESI(-)/FT-ICR-MS), technique offered a selective ionization of non-basic nitrogen compounds and acid compounds¹. Only deprotonated molecular ions or molecular ion adducts (Na⁺ or Cl^-) are observed in the mass spectrum the results (figure 1) showed that the main classes were detected in the most bio-oils (classes with a percentage higher than 1, in relative abundance), but each class presents a different distribution and compounds. Have been identified between 1100-3600 compounds in the samples studied that present between 1-36 atoms of carbon. The most dominant classes were the oxygen compounds O4, O2, and O3. Found different and unique compounds in each bio-oil. 

Figure 1. Principal classes detected by ESI(-) FT-ICR-MS of six essential bio-oils

^1.Arenas-Diaz, J. P. et al. Chemical characterization of polar species in Colombian vacuum residue and its supercritical fluid extraction subfractions using electrospray ionization FT-ICR mass spectrometry. Chem. Eng. Trans. 57, (2017).