9.4 Tesla FT-ICR MS (155 mm bore diameter)

9.4 tesla FT-ICR MS (actively shielded). 9.4 tesla FT-ICR MS (actively shielded).

This FT-ICR system operates in a 9.4- tesla, 155-mm horizontal bore diameter actively shielded superconducting solenoidal magnet (Magnex Scientific, Oxford, England).

The magnetic field inhomogeneity is less than 8.5 ppm peak to peak within a 60 mm diameter, 60 mm long cylinder, and the magnetic field drift is >50 ppb/h. All system components inside the magnet bore are nonmagnetic, including titanium vacuum flanges and hardware. Ions are transported through three stages of differential pumping, each supplied with a 680 L/s turbomolecular pump (Leybold Vakuum, Cologne, Germany). When the instrument is not in use, the elevated-pressure source region is isolated from the low-pressure ICR cell region by means of a gate valve/bellows arrangement. The entire system can be rolled in and out of the magnet by means of a steel race/ball bearing pillow block system to which the apparatus is mounted. This arrangement allows for easy access to the cell for modification or heating of the system.

Citation: Instrumentation and Method for Ultrahigh Resolution Field Desorption Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry of Nonpolar Species, Analytical Chemistry, Vol. 77, No. 5, March 1, 2005

Request time for this instrument.


  • Specs

  • Field Strength: 9.4 tesla
  • Bore Diameter: 155 mm
  • Homogeneity: <9 ppm (60 mm dia. X 60 mm long cylinder)
  • Open for users who would pay for magnet time: Yes


Staff Contact


Last modified on 24 June 2021