Optimisation of preconcentration for determination of dicarboxylic acids using ion chromatography

0542763 - ÚIACH 2024 RIV CH eng J - Journal Article
Alexa, Lukáš - Mikuška, Pavel
Optimisation of preconcentration for determination of dicarboxylic acids using ion chromatography.
International Journal of Environmental Analytical Chemistry. Roč. 103, č. 16 (2023), s. 4049-4060. ISSN 0306-7319. E-ISSN 1029-0397
R&D Projects: GA ČR(CZ) GA19-12109S
Institutional support: RVO:68081715
Keywords : carboxylic-acids * organic-compounds * mass-spectrometry * aerosols * dicarboxylic acids * solid phase extraction
OECD category: Analytical chemistry
Impact factor: 2.6, year: 2022
Method of publishing: Limited access

An automated on-line preconcentration and detection method for determination of dicarboxylic acids (DCAs) in aqueous samples is proposed. Parameters of two different off-line preconcentration methods (solid phase extraction SPE, and concentrator columns) were tested and optimised. Compared with SPE columns, the concentrator column AC15 was chosen as the best choice for the next optimization followed by separation and detection by ion chromatography (IC). The sensitive method for determination of 7 DCAs (oxalic, malonic, succinic, maleic, glutaric, pimelic and azelaic acid) was devised with detection limits of 0.12-0.40 nM. The presented system describes an alternative on-line method usable for automated monitoring of selected analytes.
Permanent Link: http://hdl.handle.net/11104/0320110