DOE EML: Po-02-RC: Polonium in Water, Vegetation, Soil, and Air Filters
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Official Method Name
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Polonium in Water, Vegetation, Soil, and Air Filters |
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Current Revision
| EML Procedures Manual HASL-300, Volume 1, 28th Ed.(1997) |
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Media
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VARIOUS |
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Instrumentation
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Alpha Spectrometer/Counter |
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Method Subcategory
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Radiochemical |
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Method Source
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Citation
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Brief Method Summary
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Polonium is equilibrated with Po-208 or Po-209 tracer and isolated from most other elements by coprecipitation with lead sulfide. The sulfide precipitate is dissolved in weak HCl solution. Polonium is quantitatively deposited on a nickel disc. The deposition is very specific and can be carried out in the presence of other radionuclides. The plated disc is counted on an alpha spectrometer to measure chemical yield and activity of the sample. The solution from the deposition may be retained and analyzed for Pb-210. |
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Scope and Application
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This procedure has been tested for water, vegetation, soil, and Dynaweb filters. Reagent blanks must be analyzed along with the samples. |
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Applicable Concentration Range
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None given. |
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Interferences
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Cross contamination: High-level and low-level samples should be processed in independent batches to minimize possibility of cross contamination. |
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Quality Control Requirements
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QC samples should be analyzed to ensure required limits of precision and accuracy are being met. QC samples include instrument calibration standards, blank samples, control samples, an "spiked" samples. |
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Sample Handling
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None given. |
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Maximum Holding Time
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None given. |
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Relative Cost
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$51 to $200 |
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Sample Preparation Methods
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