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Design and Construction of the DEMS Instrument

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Design, Construction and Research Application of a Differential Electrochemical Mass Spectrometer (DEMS)

Part of the book series: Springer Theses ((Springer Theses,volume 8))

Abstract

In this chapter, details of the DEMS instrument design and construction created as part of this thesis are presented. The instrument employs a dual thin-layer electrochemical flow cell and microporous PTFE membrane interfaced to a high vacuum system containing a QMS. The vacuum system design possesses a tubular aperture to control and direct the flux of gas through the cross-beam ion source, whilst a 3-stage differentially pumped vacuum construction provided optimum operating pressures of the QMS in order to maximise instrument sensitivity.

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Authors and Affiliations

  1. Department of Chemistry, University of Copenhagen, Copenhagen, Denmark

    Sean James Ashton

Authors
  1. Sean James Ashton
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© 2012 Springer-Verlag Berlin Heidelberg

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Ashton, S. (2012). Design and Construction of the DEMS Instrument. In: Design, Construction and Research Application of a Differential Electrochemical Mass Spectrometer (DEMS). Springer Theses, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-30550-4_3

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