Book ChapterDOI
Automated Measurement of Atmospheric Trace Gases: Diffusion-Based Collection and Analysis
Purnendu K. Dasgupta
- pp 41-90
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The article was published on 1993-06-01. It has received 49 citations till now. The article focuses on the topics: Diffusion (business) & Trace gas.read more
Citations
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Journal ArticleDOI
A continuous-flow denuder for the measurement of ambient concentrations and surface-exchange fluxes of ammonia
G.P. Wyers,R.P. Otjes,J. Slanina +2 more
TL;DR: In this paper, a new diffusion denuder is described for the continuous measurement of atmospheric ammonia, separated from interfering compounds by diffusion through a semi-permeable membrane and detected by conductometry.
Journal ArticleDOI
Real-time measurements of ammonia, acidic trace gases and water-soluble inorganic aerosol species at a rural site in the Amazon Basin
TL;DR: In this article, the authors measured the mixing ratios of ammonia (NH3), nitric acid (HNO3), Nitrous Acid (HONO), HONO, hydrochloric acid, HCl, sulfur dioxide (SO2), ammonium (NH4+), nitrate (NO3-), nitrite (NO2-), chloride (Cl-Cl- and sulfate (SO42-), and their diel and seasonal variations at a pasture site in the Amazon Basin (Rondonia, Brazil).
Journal ArticleDOI
Intercomparison of ammonia measurement techniques at an intensively managed grassland site (Oensingen, Switzerland)
Michael Norman,Christoph Spirig,Veronika Wolff,Ivonne Trebs,Christophe Flechard,Armin Wisthaler,R. Schnitzhofer,Armin Hansel,Albrecht Neftel +8 more
TL;DR: In this article, three different instruments for atmospheric ammonia (NH3) measurements were operated side-by-side on a managed grassland site in Switzerland: a modified Proton Transfer Reaction Mass Spectrometer (PTR-MS), a GRadient of AErosol and Gases Online Registrator (GRAEGOR), and an Automated Ammonia Analyzer (AiRRmonia).
Journal ArticleDOI
Continuous wet denuder measurements of atmospheric nitric and nitrous acids during the 1999 Atlanta Supersite
TL;DR: In this article, two different measurement methods for atmospheric nitric and nitrous acid during the Atlanta Supersite study are described and compared, which combined wet denuder collection coupled to ion chromatographic analysis.
Journal ArticleDOI
A new measurement method for nitrogen oxides in the air using an annular diffusion scrubber coated with titanium dioxide
TL;DR: In this article, an annular diffusion scrubber with a mixture of titanium dioxide (TiO2) and hydroxyapatite (Ca10(PO4)6(OH)2) was used for the measurement of NOx in the ambient air.
Related Papers (5)
Continuous Automated Measurement of Gaseous Nitrous and Nitric Acids and Particulate Nitrite and Nitrate
A continuous-flow denuder for the measurement of ambient concentrations and surface-exchange fluxes of ammonia
G.P. Wyers,R.P. Otjes,J. Slanina +2 more