Field analysis of mercury in water, sediment and soil using static headspace analysis

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We developed a field screening method for rapid analysis of Hg in water, soil, and sediment, which can be applied cost-effectively at Hg-contaminated sites. Samples are chemically pretreated in ordinary containers, followed by analysis of the sample headspace Hg vapor using a portable commercial analyzer. Hg in water samples is reduced directly by the addition of stannous chloride, while solids are first digested with aqua regia or piranha solution to liberate the Hg from the solids. Aided by vigorous agitation after adding the reductant, the elemental Hg partitions between solution and headspace according to Henry`s Law. The method requires about ... continued below

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10 p.

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Kriger, A.A. & Turner, R.R. December 31, 1994.

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  • Kriger, A.A. Lockwood Greene Technologies, Oak Ridge, TN (United States)
  • Turner, R.R. Oak Ridge National Lab., TN (United States)

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Description

We developed a field screening method for rapid analysis of Hg in water, soil, and sediment, which can be applied cost-effectively at Hg-contaminated sites. Samples are chemically pretreated in ordinary containers, followed by analysis of the sample headspace Hg vapor using a portable commercial analyzer. Hg in water samples is reduced directly by the addition of stannous chloride, while solids are first digested with aqua regia or piranha solution to liberate the Hg from the solids. Aided by vigorous agitation after adding the reductant, the elemental Hg partitions between solution and headspace according to Henry`s Law. The method requires about 2 and 15 minutes to complete for water and solids, respectively. The method provides very useful detection limits for water (0.1 {mu}g/L) and solids (2-3{mu}g/g). Intercomparisons with laboratory-analyzed environmental samples show good agreement.

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10 p.

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OSTI as DE96009631

Medium: P; Size: 10 p.

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  • International conference on mercury as a global pollutant, Whistler (Canada), 10-14 Jul 1994

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  • Other: DE96009631
  • Report No.: CONF-940729--2
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 228520
  • Archival Resource Key: ark:/67531/metadc673250

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 31, 1994

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  • June 29, 2015, 9:42 p.m.

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  • April 6, 2017, 7:12 p.m.

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Kriger, A.A. & Turner, R.R. Field analysis of mercury in water, sediment and soil using static headspace analysis, article, December 31, 1994; Tennessee. (digital.library.unt.edu/ark:/67531/metadc673250/: accessed August 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.