ArticleAnalytical and bioanalytical chemistry2026
Comprehensive profiling of arsenosugars in algae using UHPLC-HRMS and UHPLC-IMS-Q-TOF.
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
Arsenic is a ubiquitous environmental contaminant, and its toxicological impact is highly dependent on its speciation. In marine edible algae, increasingly consumed for their nutritional value, arsenosugars (As-Sugars) constitute the major arsenic forms. Despite their generally low toxicity, their uncertain long-term effects make accurate identification essential. We developed an analytical workflow combining ultra-high-performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS). Both Q-Orbitrap and IMS-Q-TOF systems were employed, operating in positive and negative electrospray ionization (ESI) modes. Using a zwitterionic hydrophilic interaction liquid chromatography (HILIC-Z) column, we achieved effective separation of the target compounds and subsequently performed detailed HRMS and MS/MS analyses. This approach enabled the structural annotation of four key As-Sugars (Gly-Sug, PO
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