Evaluation of an in-situ x-ray fluorescence analyzer for inorganic pollutants in sediments and water columns

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The applicability of an energy dispersive x-ray fluorescence spectrometer for measurement of trace elements in sediments and in water columns from Coast Guard vessels has been investigated. This investigation was conducted in both freshwater and saltwater areas and included Puget Sound, Lake Washington, Lake Union, and the ship canal in the State of Washington. The spectrometer system consisted of a solid cryogen-cooled Si(Li) detector and a /sup 109/Cd excitation source. Sediments and water columns were viewed through a 0.2 mm Be window. This study showed the feasibility of measuring trace elements at concentrations ranging from 20 to about 100 ppM. ... continued below

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Wogman, N.A. September 1, 1979.

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  • Pacific Northwest Laboratory
    Publisher Info: Battelle Pacific Northwest Labs., Richland, WA (USA)
    Place of Publication: Richland, Washington

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The applicability of an energy dispersive x-ray fluorescence spectrometer for measurement of trace elements in sediments and in water columns from Coast Guard vessels has been investigated. This investigation was conducted in both freshwater and saltwater areas and included Puget Sound, Lake Washington, Lake Union, and the ship canal in the State of Washington. The spectrometer system consisted of a solid cryogen-cooled Si(Li) detector and a /sup 109/Cd excitation source. Sediments and water columns were viewed through a 0.2 mm Be window. This study showed the feasibility of measuring trace elements at concentrations ranging from 20 to about 100 ppM. Measurements of this sensitivity with a 100 mCi /sup 109/Cd source are possible for time intervals as short as 5 minutes. This in-situ measurement capability permits the on-site mapping of pollution and avoids the problem of sediment disturbance which is inherent in the collection of grab samples of the sediment surface. Recommendations for an improved analyzer system included a detector assembly which could be towed, or allow continuous sediment surface analysis thereby recording the average composition of a large area.

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Dep. NTIS, PC A04/MF A01.

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  • Report No.: PNL-3168
  • Grant Number: EY-76-C-06-1830
  • DOI: 10.2172/5613393 | External Link
  • Office of Scientific & Technical Information Report Number: 5613393
  • Archival Resource Key: ark:/67531/metadc1093368

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  • September 1, 1979

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 19, 2018, 7:29 p.m.

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Wogman, N.A. Evaluation of an in-situ x-ray fluorescence analyzer for inorganic pollutants in sediments and water columns, report, September 1, 1979; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1093368/: accessed December 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.