Detection and identification of cations and anions of ionic liquids by means of electrospray ionization mass spectrometry and tandem mass spectrometry

Boris L. Milman, Zeev B. Alfassi

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Electrospray ionization (ESI) and collision-induced dissociation (CID) spectra of nine ionic liquids have been measured. The main fragmentations of most of these ionic liquid cations were due to the loss of a butene molecule. In contrast to tetraalkylammonium ions, CID spectra of aromatic cations may represent insufficient information for unambiguous identification due to their only partial fragmentation. CID spectra of ionic liquid anions, however, allowed their reliable recognition, since isomers/isobars of such inorganic species are rare. Detection limits of cations and anions in a mixture of different ionic liquids seemed to depend on their surface activity as determined by the hydrophobicity of these species.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalEuropean Journal of Mass Spectrometry
Volume11
Issue number1
DOIs
StatePublished - 30 May 2005

Keywords

  • Collision-induced dissociation
  • Electrospray ionization
  • Fragmentation
  • Identification
  • Ionic liquids
  • Mass spectrometry
  • Surface activity

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

Fingerprint

Dive into the research topics of 'Detection and identification of cations and anions of ionic liquids by means of electrospray ionization mass spectrometry and tandem mass spectrometry'. Together they form a unique fingerprint.

Cite this