Application Of The Diffusion Screen Technique To The Determination Of Gaseous Mercury And Mercury (II) Chloride In Flue Gases
- 1 September 1993
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Environmental Analytical Chemistry
- Vol. 52 (1-4), 65-73
- https://doi.org/10.1080/03067319308042849
Abstract
A technique based on the use of a gold-coated diffusion screen for the collection of gaseous mercury species in flue gases is introduced. Using this technique, collection efficiencies for both metallic mercury and mercury(II)chloride are well above 90% at temperatures up to more than 100°C and at gas flow rates up to 6 1/min. SO2, NO and H2O do not have significant effects on the collection efficiency. The method is very convenient considering practical flue gas measurements, because the screen can be used in a compact filter holder suitable for in-stack measurements.Keywords
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