title: Petroleum crude oil characterization by IMS-MS and FTICR MS.
abstract: Here, complementary ion mobility/mass spectrometry (IM/MS) and ultrahigh-resolution Fourier transform ion cyclotron resonance (FTICR) MS analyses of light, medium, and heavy petroleum crude oils yielded distributions of the heteroatom-containing hydrocarbons, as well as multiple conformational classes. The IM/MS technique provides unique fingerprints for fast identification of signature conformational/compositional patterns, whereas FTICR MS analysis provides comprehensive heteroatom class distributions. IM/MS and FTICR MS results reveal an increase in compositional complexity in proceeding from light to medium to heavy crude oils. Inspection of the mobility results shows a high structural diversity for the C(n)H(h)XY (XY = N(1), S(1), N(1), O(1), NS, SO(1-2), NO(1-2), etc.) series, as well as a shift from planar to more compact three-dimensional structures with increasing mass.
authors.affiliation: Department of Chemistry, Texas A&M University, College Station, Texas 77843, USA.
authors.forename: Francisco A
authors.initials: FA
authors.lastname: Fernandez-Lima
authors.forename: Christopher
authors.initials: C
authors.lastname: Becker
authors.forename: Amy M
authors.initials: AM
authors.lastname: McKenna
authors.forename: Ryan P
authors.initials: RP
authors.lastname: Rodgers
authors.forename: Alan G
authors.initials: AG
authors.lastname: Marshall
authors.forename: David H
authors.initials: DH
authors.lastname: Russell
mesh_terms: D005583:Fourier Analysis; D013058:Mass Spectrometry; D010578:Petroleum / Q000032:analysis*
chemical_list: D010578:Petroleum