ArticleAnalytical and bioanalytical chemistry2026
Development and validation of a two-step accelerated solvent extraction-based multiclass method for the quantification of organic markers in urban aerosols.
Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Urban air pollution is heavily influenced by particulate matter, which often contains a complex mixture of organic molecular markers indicative of various sources. This study presents a comprehensive, validated analytical protocol for the simultaneous quantification of 136 target compounds across five major families of organic markers, categorized into five diverse families: 64 phenols, 22 carboxylic acids, 16 polycyclic aromatic hydrocarbons (PAHs), 14 saccharides, and 20 tire wear particle (TWP) chemicals. The protocol employs a dual-step accelerated solvent extraction process to effectively recover both polar and non-polar analytes: an initial extraction with acetonitrile targets phenols, carboxylic acids, PAHs, and TWP chemicals, followed by dichloromethane:methanol (1:1 v/v) for saccharides. Extracts are analyzed using chromatographic techniques tailored for each class: gas chromatography-mass spectrometry (GC-MS) for phenols and carboxylic acids, ion trap GC-MS for saccharides, gas chromatography-tandem mass spectrometry for PAHs, and high-performance liquid chromatography-tandem mass spectrometry for TWP chemicals, confirming good linearity (r
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