Rates and Dynamics of Mercury Isotope Exchange between Dissolved Elemental Hg(0) and Hg(II) Bound to Organic and Inorganic Ligands

Quanying Wang; Lijie Zhang; Xujun Liang; Xiangping Yin; Yaoling Zhang; Wang Zheng; Eric M. Pierce; Baohua Gu

doi:10.1021/acs.est.0c06229

November 16, 2020Environmental Science & TechnologyOpen Access

Rates and Dynamics of Mercury Isotope Exchange between Dissolved Elemental Hg(0) and Hg(II) Bound to Organic and Inorganic Ligands

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Key Points

This research investigates the rates and mechanisms of mercury isotope exchange between elemental Hg(0) and Hg(II) bound to different ligands.
Experimental setup to measure exchange rates between Hg(0) and Hg(II) with organic and inorganic ligands.
Analysis of isotope tracer studies under controlled laboratory conditions.
Examination of both enriched and natural abundance mercury isotopes to assess their interactions.
Demonstrated significant rates of mercury isotope exchange with various ligands.
Hg(0) readily interacts with Hg(II) bound to organic and inorganic ligands, highlighting the complexity of environmental mercury behavior.
Findings emphasize the need to factor in exchange reactions in both enriched and natural isotope studies of mercury.

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Implication

In vitro experiments reveal mercury isotope exchange dynamics, indicating the significance of these reactions in isotope studies.

Abstract

readily exchanges with Hg(II) bound to various ligands and highlight the importance of considering exchange reactions in experimental enriched Hg isotope tracer studies or in natural abundance Hg isotope studies in environmental matrices.

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Wang et al. (2020) studied this question.

synapsesocial.com/papers/6a5e12ad44d40cfb0237b8d3 https://doi.org/10.1021/acs.est.0c06229

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Rates and Dynamics of Mercury Isotope Exchange between Dissolved Elemental Hg(0) and Hg(II) Bound to Organic and Inorganic Ligands

Key Points

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Implication

Abstract

Discussion

Cite This Study

Rates and Dynamics of Mercury Isotope Exchange between Dissolved Elemental Hg(0) and Hg(II) Bound to Organic and Inorganic Ligands

Key Points

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Implication

Abstract

Discussion

Cite This Study

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