Jump to main content
Jump to site search

Issue 9, 2010
Previous Article Next Article

Amperometric measurement of gaseous hydrogen sulfide via a Clark-type approach

Author affiliations

Abstract

The direct oxidation of hydrogen sulfide in the range 2.0–20 parts per million by volume (ppmv) using a Clark-type amperometric gas sensing methodology is investigated via amperometric transients at 298 K. The diluent gas employed is air (20.9% O2 in N2), and it is shown that the observed current transients are limited by transport through the membrane covering, reaching a steady-state value within at least 200 s for one of the manifestations described. The measurement system presented is shown to be operational over a long time (tens of hours), provided certain quantification protocols are employed; the latter are suggested as pragmatic guidelines for the deployment of this detection methodology. Importantly and notably, it is shown that readily-oxidizable gases such as carbon monoxide and molecular hydrogen are observed not to interfere with the measurement quantification.

Graphical abstract: Amperometric measurement of gaseous hydrogen sulfide via a Clark-type approach

Back to tab navigation

Supplementary files

Publication details

The article was received on 24 May 2010, accepted on 21 Jun 2010 and first published on 10 Aug 2010


Article type: Paper
DOI: 10.1039/C0AY00338G
Citation: Anal. Methods, 2010,2, 1346-1354
  •   Request permissions

    Amperometric measurement of gaseous hydrogen sulfide via a Clark-type approach

    J. J. Horn, T. Mccreedy and J. Wadhawan, Anal. Methods, 2010, 2, 1346
    DOI: 10.1039/C0AY00338G

Search articles by author

Spotlight

Advertisements