Articles | Volume 12, issue 1
https://doi.org/10.5194/amt-12-281-2019
https://doi.org/10.5194/amt-12-281-2019
Research article
 | 
16 Jan 2019
Research article |  | 16 Jan 2019

Development of an online-coupled MARGA upgrade for the 2 h interval quantification of low-molecular-weight organic acids in the gas and particle phases

Bastian Stieger, Gerald Spindler, Dominik van Pinxteren, Achim Grüner, Markus Wallasch, and Hartmut Herrmann

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Hartmut Herrmann on behalf of the Authors (20 Dec 2018)  Author's response   Manuscript 
ED: Publish as is (21 Dec 2018) by Pierre Herckes
AR by Hartmut Herrmann on behalf of the Authors (24 Dec 2018)  Author's response   Manuscript 
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Short summary
A MARGA was combined with an additional IC system specialized for the 2 h interval online quantification of 12 low-molecular-weight organic acids in the gas and particle phases. Low limits of detection and good precision were achieved. The suitability for field measurements was shown. This setup reduces laboratory work and filter sampling artifacts. Diurnal profiles, sources and phase distributions of these compounds will improve the knowledge of the tropospheric multiphase chemistry.