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|Title:||Intercomparison Study of Six HTDMAs: Results and Recommendations|
|Authors:||DUPLISSY J; GYSEL M; SJOGREN S; MEYER N; GOOD N; KAMMERMANN L; MICHAUD V; WEIGEL R; MARTINS DOS SANTOS Sebastiao; GRUENING Carsten; VILLANI P; LAJ P; SELLEGRI K; METZGER A; MCFIGGANS G.b.; WEHRLE G; RICHTER R; DOMMEN J; RISTOVSKI Z; BALTENSPERGER Urs; WEINGARTNER E|
|Citation:||Atmospheric Measurement Techniques vol. 2 no. 2 p. 363-378|
|Type:||Articles in Journals|
|Abstract:||We report on an intercomparison of six different hygroscopicity tandem differential mobility analysers (HTDMAs). These HTDMAs are used worldwide in laboratory experiments and field campaigns to measure the water uptake of aerosol particles and have never been intercompared. After an investigation of the different design of the instruments with their advantages and inconveniencies, the methods for calibration, validation and data analysis are presented. Measurements of nebulised ammonium sulphate as well as of secondary organic aerosol generated from a smog chamber were performed. Agreement and discrepancies between the instruments and to the theory are discussed, and final recommendations for a standard instrument are given, as a benchmark for laboratory or field experiments to ensure a high quality of HTDMA data.|
|JRC Institute:||Institute for Environment and Sustainability|
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