ArticleAnalytical and bioanalytical chemistry2026
Assessing emerging contaminants in Antarctic benthic marine fauna: a dual mass spectrometry investigation combining targeted and suspect screening approaches.
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
Antarctica hosts a highly endemic and diverse benthic marine fauna. Despite this biodiversity, the Antarctic marine food web remains structurally simple, rendering the ecosystem particularly vulnerable to environmental stressors. Benthic organisms, due to their sedentary nature, long lifespans, and close interaction with the sediment-water interface, are widely regarded as effective sentinels of ecological change. In this study, we extended a previously validated QuEChERS-based extraction protocol, originally developed for Adamussium colbecki organisms, to assess its applicability across additional Antarctic benthic taxa, including Sphaerotylus antarcticus, Odontaster validus, Trematomus bernacchii, and Laternula elliptica. The extraction method was used in combination with LC-MS/MS analysis for the determination of emerging contaminants in both targeted and suspect screening modes. Method performance was evaluated for 23 targeted emerging contaminants (ECs), yielding recovery rates of 58-116% and matrix effects between 62 and 108% for most compounds, confirming the method's suitability for taxonomically diverse matrices. Samples collected during Antarctic expeditions from 2018 to 2022 revealed the presence of multiple ECs, including perfluorooctanoic acid (PFOA), caffeine, pharmaceuticals and personal care products (PPCPs), and UV filters. Complementarily, a preliminary suspect screening via high-resolution mass spectrometry was attempted, revealing the potential presence of a broader spectrum of drugs, PPCPs, and lifestyle-related compounds in all studied species. This work represents one of the first applications of a QuEChERS-based analytical framework for ECs detection in Antarctic marine fauna, offering a reliable approach for long-term contaminant monitoring in one of the planet's most fragile ecosystems.
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