Potential analytical applications of negative ions from a pulsed radiofrequency glow discharge in argon

Stela Canulescu, James Whitby, Katrin Fuhrer, Markus Hold, Marc Gonin, Thomas Horvath, Johann Michler

Research output: Contribution to journalJournal articleResearchpeer-review


Detection of negative ions from a conventional analytical glow discharge source using argon as the working gas is reported. The negative ions are recorded using a pulsed discharge source coupled with a time-of-flight mass spectrometer. A considerable enhancement in the "afterglow" region of the negative ion signal for halogens and halogenated molecules and reduction in background is observed. This is the first time when negative ions have been reported for halogen containing materials and we illustrate our findings with results from the polytetrafluoroethene polymer (PTFE).
Original languageEnglish
JournalJournal of analytical atomic spectrometry
Issue number2
Pages (from-to)178-180
Publication statusPublished - 2009
Externally publishedYes

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