Since the underlying theory of Distance-of-Flight Mass Spectrometry (DOFMS) was reported in 2007,[1] laboratory results[2, 3] have proven its practical viability. However, these previous implementations of DOFMS considered ion detection only over narrow DOF-detection windows, with 25-mm being the greatest detection length explored. These small mass windows cannot be used to evaluate how DOFMS focusing performs over greater DOF detection lengths and mass ranges. In the present study, we expand on previous studies by placing two spatially selective ion detectors along the detection plane of the DOFMS instrument. Ion signals are simultaneously collected from both DOF detectors in order to simulate DOFMS performance with a longer spatially selective ion detector.
Revised: November 5, 2012 |
Published: November 15, 2012
Citation
Gundlach-Graham A.W., E. Dennis, S.J. Ray, C.G. Enke, A.J. Carado, C.J. Barinaga, and D.W. Koppenaal, et al. 2012.Extension of the Focusable Mass Range in Distance-of-Flight Mass Spectrometry with Multiple Detectors.Rapid Communications in Mass Spectrometry 26, no. 21:2526-2534.PNNL-SA-90209.doi:10.1002/rcm.6379