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.
Vilkov, A. N., Gamage, C. M., Misharin, A. S., Doroshenko, V. M., Tolmachev, D. A., Tarasova, I. A., … Gorshkov, M. V. (2007). Atmospheric Pressure Ionization Permanent Magnet Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Journal of the American Society for Mass Spectrometry, 18(8), 1552–1558. https://doi.org/10.1016/j.jasms.2007.05.010