title: Hydrocarbon polymer analysis by external MALDI fourier transform and reflectron time of flight mass spectrometry.
abstract: The traditional solvent-based matrix-assisted laser desorption ionization (MALDI) preparation method has been used to analyze nonpolar polymers of various molecular weights. High resolution silver cationized oligomers with masses of up to 12 KDa were measured using 9.4 tesla Fourier transform mass spectrometry (FTMS) with an external ionization source. It was observed that when time-of-flight mass spectrometry was used, the spectra of polyethylene polymers showed abundant low mass fragment ions. However, these fragments were absent from the FTMS spectra.
authors.affiliation: Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, 72701, USA.
authors.forename: Arwah J
authors.initials: AJ
authors.lastname: Jaber
authors.forename: Charles L
authors.initials: CL
authors.lastname: Wilkins
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D006838:Hydrocarbons / Q000032:analysis / Q000737:chemistry; D011108:Polymers / Q000032:analysis / Q000737:chemistry; D011137:Polystyrenes / Q000032:analysis* / Q000737:chemistry*; D013048:Specimen Handling / Q000379:methods; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization / Q000379:methods*; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods*
chemical_list: D006838:Hydrocarbons; D011108:Polymers; D011137:Polystyrenes