Arsenic Speciation of Terrestrial Invertebrates

Moriarty, M M; Koch, I; Gordon, R A; Reimer, K J

doi:10.1021/es900086r

Title: Arsenic Speciation of Terrestrial Invertebrates

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Abstract

The distribution and chemical form (speciation) of arsenic in terrestrial food chains determines both the amount of arsenic available to higher organisms, and the toxicity of this metalloid in affected ecosystems. Invertebrates are part of complex terrestrial food webs. This paper provides arsenic concentrations and arsenic speciation profiles for eight orders of terrestrial invertebrates collected at three historical gold mine sites and one background site in Nova Scotia, Canada. Total arsenic concentrations, determined by inductively coupled plasma mass spectrometry (ICP-MS), were dependent upon the classification of invertebrate. Arsenic species were determined by high-performance liquid chromatography (HPLC) ICP-MS and X-ray absorption spectroscopy (XAS). Invertebrates were found by HPLC ICP-MS to contain predominantly arsenite and arsenate in methanol/water extracts, while XAS revealed that most arsenic is bound to sulfur in vivo. Examination of the spatial distribution of arsenic within an ant tissue highlighted the differences between exogenous and endogenous arsenic, as well as the extent to which arsenic is transformed upon ingestion. Similar arsenic speciation patterns for invertebrate groups were observed across sites. Trace amounts of arsenobetaine and arsenocholine were identified in slugs, ants, and spiders.

Authors:

Moriarty, M M; Koch, I; Gordon, R A; Reimer, K J ^[1]

(Simon)

Publication Date:: Wed Jul 01 00:00:00 EDT 2009

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1018557

Resource Type:: Journal Article

Journal Name:: Environ. Sci. Technol.

Additional Journal Information:: Journal Volume: 43; Journal Issue: (13) ; 07, 2009; Journal ID: ISSN 0013-936X

Country of Publication:: United States

Language:: ENGLISH

Subject:: 54 ENVIRONMENTAL SCIENCES; ABSORPTION SPECTROSCOPY; ARSENATES; ARSENIC; CLASSIFICATION; DISTRIBUTION; ECOSYSTEMS; FOOD CHAINS; GOLD; HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY; IN VIVO; INGESTION; INVERTEBRATES; MASS SPECTROSCOPY; PLASMA; SEMIMETALS; SPATIAL DISTRIBUTION; SULFUR; TOXICITY; TRACE AMOUNTS

Citation Formats


                    Moriarty, M M, Koch, I, Gordon, R A, Reimer, K J, and Royal)). Arsenic Speciation of Terrestrial Invertebrates.  United States: N. p., 2009. 
        Web.  doi:10.1021/es900086r.

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                    Moriarty, M M, Koch, I, Gordon, R A, Reimer, K J, & Royal)). Arsenic Speciation of Terrestrial Invertebrates.  United States.  https://doi.org/10.1021/es900086r

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                    Moriarty, M M, Koch, I, Gordon, R A, Reimer, K J, and Royal)). 2009.  
        "Arsenic Speciation of Terrestrial Invertebrates".  United States.  https://doi.org/10.1021/es900086r.

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@article{osti_1018557,

  title        = {Arsenic Speciation of Terrestrial Invertebrates},

  author       = {Moriarty, M M and Koch, I and Gordon, R A and Reimer, K J and Royal))},

  abstractNote = {The distribution and chemical form (speciation) of arsenic in terrestrial food chains determines both the amount of arsenic available to higher organisms, and the toxicity of this metalloid in affected ecosystems. Invertebrates are part of complex terrestrial food webs. This paper provides arsenic concentrations and arsenic speciation profiles for eight orders of terrestrial invertebrates collected at three historical gold mine sites and one background site in Nova Scotia, Canada. Total arsenic concentrations, determined by inductively coupled plasma mass spectrometry (ICP-MS), were dependent upon the classification of invertebrate. Arsenic species were determined by high-performance liquid chromatography (HPLC) ICP-MS and X-ray absorption spectroscopy (XAS). Invertebrates were found by HPLC ICP-MS to contain predominantly arsenite and arsenate in methanol/water extracts, while XAS revealed that most arsenic is bound to sulfur in vivo. Examination of the spatial distribution of arsenic within an ant tissue highlighted the differences between exogenous and endogenous arsenic, as well as the extent to which arsenic is transformed upon ingestion. Similar arsenic speciation patterns for invertebrate groups were observed across sites. Trace amounts of arsenobetaine and arsenocholine were identified in slugs, ants, and spiders.},

  doi          = {10.1021/es900086r},

  url          = {https://www.osti.gov/biblio/1018557},
  journal      = {Environ. Sci. Technol.},

  issn         = {0013-936X},

  number       = (13) ; 07, 2009,

  volume       = 43,

  place        = {United States},

  year         = {Wed Jul 01 00:00:00 EDT 2009},

  month        = {Wed Jul 01 00:00:00 EDT 2009}

}

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