Adsorption as a control of metal concentrations in sediment extracts

Rendell, P S; Batley, G E; Cameron, A J

doi:10.1021/es60163a002

Title: Adsorption as a control of metal concentrations in sediment extracts

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Abstract

The adsorption of Cu, Pb, and Cd from selected extractant solutions, onto uncontaminated river sediments, has been investigated under typical extraction conditions. Significant adsorption of added metal was found to occur during overnight extraction with dilute HCl (pH>1.5), 0.1 M hydroxylamine hydrochloride (pH 2), 0.1 M sodium citrate (pH 4.6), 1 M ammonium acetate, 10% sodium citrate-1% sodium dithionite, and 25% acetic acid. Adsorption also occurred during a hydrogen peroxide digestion procedure. The inability of reagents to prevent losses of soluble metal in these experiments strongly suggests that a proportion of the metal actually released from a sediment sample during an extraction will be readsorbed. This may lead to serious misinterpretation of extraction data because the metal concentrations determined in the extract do not represent metal levels in the sediment fractions attacked.

Authors:

Rendell, P S ^[1]; Batley, G E; Cameron, A J

Australian Atomic Energy Commission Research Establishment, Lucas Heights

Publication Date:: Sat Mar 01 00:00:00 EST 1980

OSTI Identifier:: 5766037

Resource Type:: Journal Article

Journal Name:: Environ. Sci. Technol.; (United States)

Additional Journal Information:: Journal Volume: 14

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; ADSORPTION; MEASURING METHODS; CADMIUM; ENVIRONMENTAL TRANSPORT; COPPER; LEAD; ECOLOGICAL CONCENTRATION; EXTRACTION; INTERFERING ELEMENTS; SEDIMENTS; ELEMENTS; MASS TRANSFER; METALS; SEPARATION PROCESSES; SORPTION; TRANSITION ELEMENTS; 510200* - Environment, Terrestrial- Chemicals Monitoring & Transport- (-1989); 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)

Citation Formats


                    Rendell, P S, Batley, G E, and Cameron, A J. Adsorption as a control of metal concentrations in sediment extracts.  United States: N. p., 1980. 
        Web.  doi:10.1021/es60163a002.

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                    Rendell, P S, Batley, G E, & Cameron, A J. Adsorption as a control of metal concentrations in sediment extracts.  United States.  https://doi.org/10.1021/es60163a002

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                    Rendell, P S, Batley, G E, and Cameron, A J. 1980.  
        "Adsorption as a control of metal concentrations in sediment extracts".  United States.  https://doi.org/10.1021/es60163a002.

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@article{osti_5766037,

  title        = {Adsorption as a control of metal concentrations in sediment extracts},

  author       = {Rendell, P S and Batley, G E and Cameron, A J},

  abstractNote = {The adsorption of Cu, Pb, and Cd from selected extractant solutions, onto uncontaminated river sediments, has been investigated under typical extraction conditions. Significant adsorption of added metal was found to occur during overnight extraction with dilute HCl (pH>1.5), 0.1 M hydroxylamine hydrochloride (pH 2), 0.1 M sodium citrate (pH 4.6), 1 M ammonium acetate, 10% sodium citrate-1% sodium dithionite, and 25% acetic acid. Adsorption also occurred during a hydrogen peroxide digestion procedure. The inability of reagents to prevent losses of soluble metal in these experiments strongly suggests that a proportion of the metal actually released from a sediment sample during an extraction will be readsorbed. This may lead to serious misinterpretation of extraction data because the metal concentrations determined in the extract do not represent metal levels in the sediment fractions attacked.},

  doi          = {10.1021/es60163a002},

  url          = {https://www.osti.gov/biblio/5766037},
  journal      = {Environ. Sci. Technol.; (United States)},
number       = ,

  volume       = 14,

  place        = {United States},

  year         = {Sat Mar 01 00:00:00 EST 1980},

  month        = {Sat Mar 01 00:00:00 EST 1980}

}

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