Atmospheric Pressure Ionization Permanent Magnet Fourier Transform Ion Cyclotron Resonance Mass Spectrometry

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作者
Vilkov, Andrey N. [1 ]
Gamage, Chaminda M. [1 ]
Misharin, Alexander S. [1 ]
Doroshenko, Vladimir M. [1 ]
Tolmachev, Dmitry A. [2 ]
Tarasova, Irina A. [2 ]
Kharybin, Oleg N. [2 ]
Novoselov, Konstantin P. [2 ]
Gorshkov, Michael V. [2 ]
机构
[1] MassTech, Inc., Columbia, MD, United States
[2] Institute of Energy Problems of Chemical Physics, Moscow, Russia
关键词
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. © 2007 American Society for Mass Spectrometry;
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页码:1552 / 1558
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