title: Atmospheric pressure ionization permanent magnet fourier transform ion cyclotron resonance mass spectrometry.
abstract: A new Fourier transform ion cyclotron resonance mass spectrometer based on a permanent magnet with an atmospheric pressure ionization source was designed and constructed. A mass resolving power (full-width-at-half-maximum) of up to 80,000 in the electron ionization mode and 25,000 in the electrospray mode was obtained. Also, a mass measurement accuracy at low-ppm level has been demonstrated for peptide mixtures in a mass range of up to 1200 m/z in the isotopically resolved mass spectra.
authors.affiliation: MassTech, Inc., Columbia, Maryland 21046, USA. andrey_vilkov@apmaldi.com
authors.forename: Andrey N
authors.initials: AN
authors.lastname: Vilkov
authors.forename: Chaminda M
authors.initials: CM
authors.lastname: Gamage
authors.forename: Alexander S
authors.initials: AS
authors.lastname: Misharin
authors.forename: Vladimir M
authors.initials: VM
authors.lastname: Doroshenko
authors.forename: Dmitry A
authors.initials: DA
authors.lastname: Tolmachev
authors.forename: Irina A
authors.initials: IA
authors.lastname: Tarasova
authors.forename: Oleg N
authors.initials: ON
authors.lastname: Kharybin
authors.forename: Konstantin P
authors.initials: KP
authors.lastname: Novoselov
authors.forename: Michael V
authors.initials: MV
authors.lastname: Gorshkov
mesh_terms: D000465:Algorithms; D001274:Atmospheric Pressure; D010455:Peptides / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000295:instrumentation* / Q000379:methods; D017550:Spectroscopy, Fourier Transform Infrared / Q000295:instrumentation* / Q000379:methods
chemical_list: D010455:Peptides