Ultra-High Mass Spectrometry

  • Joseph E. Campana
    Naval Research Laboratory, Chemistry Division, Washington, D.C. 20375 (J.E.C., R.J.C., J.R.W.); V. G. Analytical Ltd., Floats Road, Wythenshawe, Manchester M23 9LE, U.K. (R.H.B., B.N.G.)
  • Richard J. Colton
    Naval Research Laboratory, Chemistry Division, Washington, D.C. 20375 (J.E.C., R.J.C., J.R.W.); V. G. Analytical Ltd., Floats Road, Wythenshawe, Manchester M23 9LE, U.K. (R.H.B., B.N.G.)
  • Jeffrey R. Wyatt
    Naval Research Laboratory, Chemistry Division, Washington, D.C. 20375 (J.E.C., R.J.C., J.R.W.); V. G. Analytical Ltd., Floats Road, Wythenshawe, Manchester M23 9LE, U.K. (R.H.B., B.N.G.)
  • Robert H. Bateman
    Naval Research Laboratory, Chemistry Division, Washington, D.C. 20375 (J.E.C., R.J.C., J.R.W.); V. G. Analytical Ltd., Floats Road, Wythenshawe, Manchester M23 9LE, U.K. (R.H.B., B.N.G.)
  • Brian N. Green
    Naval Research Laboratory, Chemistry Division, Washington, D.C. 20375 (J.E.C., R.J.C., J.R.W.); V. G. Analytical Ltd., Floats Road, Wythenshawe, Manchester M23 9LE, U.K. (R.H.B., B.N.G.)

Abstract

<jats:p> Massive cluster ions of CsI (mass-to-charge ratio > 25,000) have been produced, mass analyzed, and detected with a conventional double-focusing mass spectrometer. Variations in the ion intensity distributions depend on the relative lifetime of the ions. These results are of fundamental interest, but they also impact the practical limits of mass spectrometry. </jats:p>

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