DOE RESL: CHEM-TP-GA/B.1: Gross Alpha and Beta in Water
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Official Method Name
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Gross Alpha and Beta in Water |
|---|---|
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Current Revision
| April 1999 |
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Media
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WATER |
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Instrumentation
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Gross Alpha and Beta Counters |
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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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Aliquots equivalent to 100 mL for alpha and 250 mL for beta are transferred to plates and planchets for counting. Average salt contents are used in the calculation to correct for self-absorption. Self-absorption of alpha and beta particles affect counting efficiencies and must be taken into account and can be done by determining individual absorbers weights. The reference nuclide for alpha activity is Pu-239 and for beta activity Cs-137. |
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Scope and Application
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This procedure is applicable to the measurement of gross alpha and beta activities in 500-mL water samples that have acidified and evaporated to 10 mL. |
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Applicable Concentration Range
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None given. |
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Interferences
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None given. |
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Quality Control Requirements
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QC procedures based on internal laboratory requirements for radiochemical analysis. |
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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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