Unveiling HgS nanoparticle formation in Hg(II)-dissolved organic matter systems at low nanomolar to submicromolar levels: A comprehensive characterization via combined liquid chromatography-ICP-MS and single particle ICP-MS

doi:10.1016/j.jhazmat.2026.142595

Unveiling HgS nanoparticle formation in Hg(II)-dissolved organic matter systems at low nanomolar to submicromolar levels: A comprehensive characterization via combined liquid chromatography-ICP-MS and single particle ICP-MS

2026-06-02

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DOI：10.1016/j.jhazmat.2026.142595

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• HgSNP formation in Hg(II)-DOM systems with ng/L to µg/L level was elucidated. • Ultrafiltration-TEM with EDX validated the HgSNP formation (∼35–40 nm). • Combined LC-ICP-MS and sp-ICP-MS tracked rapid HgSNP formation. • Sunlight and heat promote HgSNP formation via enhanced C-S bond cleavage. • This HgSNP formation reduces microbial methylation of Hg(II).

Unveiling HgS nanoparticle formation in Hg(II)-dissolved organic matter systems at low nanomolar to submicromolar levels: A comprehensive characterization via combined liquid chromatography-ICP-MS and single particle ICP-MS

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