ArticleAnalytical and bioanalytical chemistry2025
Development of a strategy for sampling, preservation, and analysis of classical and emerging flame retardants and plasticizers in air samples.
Article in Analytical and bioanalytical chemistry, 2025. 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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4 authors.
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Abstract
This study presents a methodology for sampling, preserving, and analyzing 15 organophosphate esters (OPEs), 11 phthalate esters (PEs), and 6 alternative plasticizers (APs) in indoor air. Accurate quantification is essential, given their widespread use in household items and adverse health effects associated with exposure. Solid-phase extraction (SPE) cartridges, collecting both gaseous and particulate phases, connected to a low-volume pump were used for the collection of air samples. Stability tests confirm that storing samples at 4 °C is most optimal to maintain analyte integrity for at least 2 weeks. The analytes were extracted and then purified online using turbulent flow chromatography, before analysis via liquid chromatography-tandem mass spectrometry (TFC-LC-MS/MS). Quantification was carried out by applying the isotopic dilution method with labelled standards. Recoveries ranged from 50 to 136%, with reproducibility below 21%. The relative standard deviation (RSD) varied from 2 to 31%, only exceeding the 20% threshold for certain OPEs at lower concentrations. Limits of detection (mLODs) varied between 0.02-0.89 ng/m
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