Comparison of the internal energy distributions of ions produced by different electrospray sources

C. Collette, L. Drahos, E. De Pauw, K. Vékey

Research output: Contribution to journalArticle

105 Citations (Scopus)


The internal energies of the emitted ions can be modulated in an electrospray source through different experimental conditions. However, the fragmentation pattern depends also on conditions that cannot be controlled by the operator, e.g. the geometry of the source or the mode of transfer of the ions. These differences make difficult the comparison of the electrospray mass spectra obtained with different mass spectrometers. A method for the calibration of the internal energies of ions produced by an electrospray source has been presented previously to study the influence of experimental conditions on the internal energies of the ions. The method permits the calibration of individual working conditions. In this work, new results were obtained with modified values of fragmentation energy taking into account the kinetic shift of the thermometer ions. The internal energy distributions are compared for different instruments with different geometries, and are measured under different accelerating and focusing conditions.

Original languageEnglish
Pages (from-to)1673-1678
Number of pages6
JournalRapid Communications in Mass Spectrometry
Issue number22
Publication statusPublished - Jan 1 1998

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Organic Chemistry

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