Line Shapes in ICR Spectra

  • A. H. Huizer
  • W. J. van der Hart
Part of the Lecture Notes in Chemistry book series (LNC, volume 7)


Line shapes of ICR-signals as obtained in an idealized ICR cell have been discussed in several papers. Here we refer especially to the papers by Buttrill1 and Comisarow2. Buttrill discussed line shapes for non-colliding ions by solving the equation of motion:
$$m\frac{{d}}{{dt}} = q\left\{ { + } \right\}$$
whereas Comisarow took account of collisions by introducing a damping term-cv as proposed before by Beauchamp3. This results in the equation of motion for the averaged ion velocity:
$$m\frac{{d}}{{dt}} = q\left\{ { + } \right\} - c$$
The derivation of line shapes from this equation, especially for reactive ions, is rather complicated and leads to expressions which are difficult to interpret.


Line Shape Electric Field Pulse Signal Current Linear Response Theory Drift Cell 
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  1. 1.
    S.E. Buttrill, J. Chem. Phys. 50, 4125 (1969)CrossRefGoogle Scholar
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    M.B. Comisarow, J. Chem. Phys. 55, 205 (1971)CrossRefGoogle Scholar
  3. 3.
    J.L. Beauchamp, J. Chem. Phys. 46, 1231 (1967)CrossRefGoogle Scholar
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    P.W. Atkins and M.J. Clugston, Mol. Phys. 31, 603, (1976)CrossRefGoogle Scholar
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    A.H. Huizer and W.J. van der Hart, Mol. Phys. 33, 897 (1977)CrossRefGoogle Scholar
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    M.B. Comisarow and A.G. Marshall, J. Chem. Phys. 64, 110 (1976)CrossRefGoogle Scholar
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    W.J. van der Hart, Chem. Phys. Lett. 23, 93 (1973)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1978

Authors and Affiliations

  • A. H. Huizer
    • 1
  • W. J. van der Hart
    • 1
  1. 1.Department of Theoretical Organic ChemistryUniversity of LeidenLeidenThe Netherlands

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