Summary
There is a growing need for NH3 and NH4 + gas phase measurements with high temporal resolution. We used a commercially available DOAS instrument for a continuous determination of NH3 concentration over path between 80m and 250m in the UV region from 200 to 230nm. With an integration time of 1 minute we reached a detection limit of 5 µg/m3, for a 75m path and 2 µg/m3 for a 250m path. To test these results a two channel gas stripping system measured by the reaction of o-phthalaldehyde in the presence of NaHSO3 buffered at pH 11. One channel, equipped with a glass spiral scrubber, measures NH3. Continuous measurements can be made with a time resolution of 2 minutes. The detection limit is 1 µg/m3. Both systems are suitable for studying the processes that lead to loss of NH3 during different agricultural activities.
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References
Asman W.A.H. and Diederen H.S. (1987) Ammonia and Acidification Proceedings of a Symposium of the EURASAP held at the National Institute of Public Health and Environmental Hygiene, Bilthoven, The Netherlands, 13–15. April 1987 8 – 10
Dasgupta P.K., McDowell W.L. and Rhee J.S. (1986) Porous Membrane-based Diffusion Scrubber for the Sampling of Atmospheric Gases. Analyst 11187 – 90
Dasgupta P.K.,Dong S.,Hwang H.,Yang H.C. and Genfa Z. (1988) Continuous liquid-phase fluorometry coupled to a diffusion scrubber for the real-time determination of atmospheric formaldehyde, hydrogen peroxide and sulfur dioxid Atmospheric Environment 22949 – 963
Edner H.,Sunesson A.,Svanberg S.,Unéus L. and Wallin S. (1986) Differential optical absorption spectroscopy system used for atmospheric mercury monitoring. Applied Optics 25403 – 409
Ferm M. and Christensen B.T. (1987) Determination of NH3 volatilization from surface-applied cattle slurry using passive flux samplers. In Proceedings of a Symposium of the EURASAP held at the National Institute of Public Health and Environmental Hygiene, Bilthoven, The Netherlands, 13.–15. April 1987 28 – 41
Genfa Zhang and Dasgupta P.K. (1989) Fluorometric measurement of aqueous ammonium ion in a flow injection system Anal.Chem. 61408 – 412
Platt U., Perner D. and Pätz H.W. (1979) Simultanneous measurements of atmospheric CH20, 03 and NO^ by Differential Optical Absorption. J. Geophys. Res. 846329 – 6335
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© 1990 ECSC, EEC, EAEC, Brussels and Luxembourg
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Neftel, A., Blatter, A., Staffelbach, T. (1990). Gas phase measurements of NH3and NH4 ± with Differential Optical Absorption Spectroscopy and Gas Stripping Scrubber in combination with Flow Injection Analysis. In: Restelli, G., Angeletti, G. (eds) Physico-Chemical Behaviour of Atmospheric Pollutants. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0567-2_13
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DOI: https://doi.org/10.1007/978-94-009-0567-2_13
Publisher Name: Springer, Dordrecht
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