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Sampling of gaseous sulfur-containing compounds at low concentrations with a review of best-practice methods for biogas and natural gas applications
NPL National Physical Laboratory, UK.
VSL Dutch Metrology Institute, Netherlands.
RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).ORCID iD: 0000-0002-4037-3106
NPL National Physical Laboratory, UK.
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2015 (English)In: TrAC. Trends in analytical chemistry, ISSN 0165-9936, E-ISSN 1879-3142, Vol. 64, p. 42-52Article in journal (Refereed) Published
Abstract [en]

The accurate quantification of low-concentration sulfur-containing compounds is essential for the biogas and natural gas industries. We review literature data for the stability of these compounds in standard gas mixtures when sampled in cylinders with different passivations, sample bags, sorbent tubes, solid-phase microextraction and glass sampling bulbs, and we present new data obtained at our three National Measurement Institutes. We show that losses of sulfur-containing compounds are minimized when using passivated sampling cylinders, and the most suitable sorbent material for sampling these compounds is Tenax TA. We also discuss methods for transferring gas from sample vessels to analyzers and give recommendations for the selection of regulators (and other pressure-reducing devices) and transfer lines. Further, we propose approaches that could be taken to reduce or correct for losses in order to provide more accurate measurements of sulfur-containing compounds.

Place, publisher, year, edition, pages
2015. Vol. 64, p. 42-52
Keywords [en]
Biogas, Gas analysis, Hydrogen sulfide, Natural gas, Passivated sampling cylinder, Sampling, Stability, Standard gas mixture, Sulfur-containing compound, Trace level
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-6832DOI: 10.1016/j.trac.2014.08.012Local ID: 23629OAI: oai:DiVA.org:ri-6832DiVA, id: diva2:964672
Available from: 2016-09-08 Created: 2016-09-08 Last updated: 2019-07-09Bibliographically approved

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Arrhenius, Karine

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