title: Structural analysis of triacylglycerols by using a MALDI-TOF/TOF system with monoisotopic precursor selection.
abstract: A new MALDI-TOF/TOF system with monoisotopic precursor selection was applied to the analysis of triacylglycerols in an olive oil sample. Monoisotopic precursor selection made it possible to obtain product-ion mass spectra without interference from species that differed by a single double bond. Complete structure determination of all triacylglycerols, including structural isomers, was made possible by interpreting the charge-remote fragmentation resulting from high-energy collision-induced dissociation (CID) of the sodiated triacylglycerols.
authors.affiliation: JEOL Ltd., Tokyo, Japan.
authors.forename: Ayumi
authors.initials: A
authors.lastname: Kubo
authors.forename: Takaya
authors.initials: T
authors.lastname: Satoh
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Itoh
authors.forename: Masahiro
authors.initials: M
authors.lastname: Hashimoto
authors.forename: Jun
authors.initials: J
authors.lastname: Tamura
authors.forename: Robert B
authors.initials: RB
authors.lastname: Cody
mesh_terms: D007477:Ions / Q000032:analysis / Q000737:chemistry; D012964:Sodium / Q000737:chemistry; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014280:Triglycerides / Q000032:analysis / Q000737:chemistry*
chemical_list: D007477:Ions; D014280:Triglycerides; D012964:Sodium