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Updated: Jun 28, 2026

Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes
Published on: May 26, 2014
Field experience with ambient-level flame-photometric sulphur detectors
D Weber1, K B Olsen, J D Ludwick
1United States Environmental Protection Agency, 200 S.W. 35th St., Corvallis OR 97330, U.S.A.
Abstract:
Carbon dioxide exhaled by the operators produces increased levels of this gas inside the trailers used for housing monitoring equipment for use in the field. These levels can be high enough to produce serious calibration errors in flame photometric detectors used for measuring ambient concentrations of gaseous sulphur products. Quantitative measurement of the carbon dioxide interference in the sulphur emission is reported, as well as a method of estimating the extent of quenching agent pollution.
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