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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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 27 times , with 4 in the last month . More information about this article can be viewed below.

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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

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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

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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 February 16, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.