Simultaneous determination of inorganic and organic acids in air by use of annular denuders and ion chromatography

Autor:	M. Possanzini, B. Amati, V. DiPalo
Rok vydání:	1999
Předmět:	chemistry.chemical_classification Chromatography Formic acid Carboxylic acid Organic Chemistry Clinical Biochemistry Ion chromatography Oxalic acid Hydrochloric acid Biochemistry Analytical Chemistry chemistry.chemical_compound chemistry Nitric acid Sample preparation Hydrogen chloride
Zdroj:	Chromatographia. 50:150-154
ISSN:	1612-1112 0009-5893
DOI:	10.1007/bf02490644
Popis:	The performance of KOH-coated annular denuders for simultaneous collection of gas-phase atmospheric organic and inorganic acids has been evaluated by ion chromatography (IC) with an NaOH−H2O gradient. Sampling efficiency was tested for formic and acetic acids under dry and humid air conditions. With this method several mono- and dicarboxylic acids, nitric acid, and hydrogen chloride can be detected. Laboratory and field measurements confirmed the reliability of the denuder method and its superior versatility compared with other techniques (scrubbing by means of a nebulizer, cryogenic trapping) which cannot be used to determine termine gaseous inorganic acids.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ffe3974e1188c947f4e231646af4b90c https://doi.org/10.1007/bf02490644 Zobrazit plný text záznamu Full text from SpringerLink