Time of flight mass spectrometry for quantitative data analysis in fast transient studies using a Temporal Analysis of Products (TAP) reactor

Alexandre Goguet*, Christopher Hardacre, Noleen Maguire, Kevin Morgan, Sergiy O. Shekhtman*, Steve P. Thompson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
261 Downloads (Pure)

Abstract

A Time of flight (ToF) mass spectrometer suitable in terms of sensitivity, detector response and time resolution, for application in fast transient Temporal Analysis of Products (TAP) kinetic catalyst characterization is reported. Technical difficulties associated with such application as well as the solutions implemented in terms of adaptations of the ToF apparatus are discussed. The performance of the ToF was validated and the full linearity of the specific detector over the full dynamic range was explored in order to ensure its applicability for the TAP application. The reported TAP-ToF setup is the first system that achieves the high level of sensitivity allowing monitoring of the full 0–200 AMU range simultaneously with sub-millisecond time resolution. In this new setup, the high sensitivity allows the use of low intensity pulses ensuring that transport through the reactor occurs in the Knudsen diffusion regime and that the data can, therefore, be fully analysed using the reported theoretical TAP models and data processing.

Original languageEnglish
Pages (from-to)155-163
JournalAnalyst
Volume136
Issue number1
Early online date04 Oct 2010
DOIs
Publication statusPublished - 07 Jan 2011

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy
  • Electrochemistry
  • Biochemistry
  • Environmental Chemistry

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