Simultaneous determination of gaseous ammonia and particulate ammonium in ambient air using cylindrical wet effluent diffusion denuder and continuous aerosol sampler

0534579 - ÚIACH 2021 RIV US eng J - Journal Article
Alexa, Lukáš - Mikuška, Pavel
Simultaneous determination of gaseous ammonia and particulate ammonium in ambient air using cylindrical wet effluent diffusion denuder and continuous aerosol sampler.
Analytical Chemistry. Roč. 92, č. 24 (2020), s. 15827-15836. ISSN 0003-2700. E-ISSN 1520-6882
R&D Projects: GA ČR(CZ) GA19-12109S
Institutional support: RVO:68081715
Keywords : ammonium * ammonia * simultaneous determination
OECD category: Analytical chemistry
Impact factor: 6.986, year: 2020
Method of publishing: Limited access

A sensitive and fast method for simultaneous determination of gaseous ammonia (NH3) and particulate ammonium (NH4+) in ambient air is presented. NH3 is sampled in a cylindrical wet effluent diffusion denuder (CWEDD) and analyzed on-line by continuous flow system with a fluorescence detector (FLD) while NH4+ bound to aerosol particles is sampled in parallel by a condensation growth unit – aerosol counterflow two-jets unit (CGU-ACTJU) sampler and analyzed on-line with another FLD.
Permanent Link: http://hdl.handle.net/11104/0312751