Theoretical predictions on the response properties of potentiometric gas sensors based on internal polymer membrane electrodes

M. E. Meyerhoff, Y. M. Fraticelli, W. N. Opdycke, Leonidas G Bachas, A. D. Gordus

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The appropriate equilibrium expressions and known thermodynamic equilibrium constants are used in calculations on the expected response properties of polymer membrane electrode-based ammonia and carbon dioxide gas sensors. Slopes, detection limits, Nernstian response ranges and selectivities of such devices are shown to be a function of the initial pH, ionic strength and equilibrium constant of the internal electrolyte buffer used within these probes. Previously reported data for an ammonia sensor of this type correlate well with the theory. The poor response characteristics of carbon dioxide sensors based on internal carbonate-responsive membranes is also explained via the model presented. Future prospects and considerations for the development of other gas sensors of this type are discussed.

Original languageEnglish (US)
Pages (from-to)17-31
Number of pages15
JournalAnalytica Chimica Acta
Volume154
Issue numberC
DOIs
StatePublished - 1983
Externally publishedYes

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Polymer membrane electrodes
Potentiometric sensors
Equilibrium constants
Chemical sensors
Ammonia
Carbon Dioxide
Polymers
Electrodes
electrode
polymer
Gases
membrane
sensor
Membranes
Carbonates
Sensors
prediction
Ionic strength
Thermodynamics
gas

ASJC Scopus subject areas

  • Biochemistry
  • Analytical Chemistry
  • Spectroscopy
  • Environmental Chemistry

Cite this

Theoretical predictions on the response properties of potentiometric gas sensors based on internal polymer membrane electrodes. / Meyerhoff, M. E.; Fraticelli, Y. M.; Opdycke, W. N.; Bachas, Leonidas G; Gordus, A. D.

In: Analytica Chimica Acta, Vol. 154, No. C, 1983, p. 17-31.

Research output: Contribution to journalArticle

Meyerhoff, M. E. ; Fraticelli, Y. M. ; Opdycke, W. N. ; Bachas, Leonidas G ; Gordus, A. D. / Theoretical predictions on the response properties of potentiometric gas sensors based on internal polymer membrane electrodes. In: Analytica Chimica Acta. 1983 ; Vol. 154, No. C. pp. 17-31.
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