DOE EML: Sr-03-RC: Strontium-90 in Environmental Matrices
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Official Method Name
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STRONTIUM-90 IN ENVIRONMENTAL MATRICES |
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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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WATER |
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Instrumentation
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Gamma Radiation Detector |
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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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Strontium is separated from calcium, other fission products and natural radioactive elements. Fuming HNO3 separations remove the calcium and most of the other interfering ions. Radium, lead and barium are removed with barium chromate. Traces of other fission products are scavenged with iron hydroxide. After the Sr-90 + Y-90 equilibrium has been attained, the Y-90 is precipitated as the hydroxide and converted to the oxalate for counting on a low-background gas proportional beta counter. Chemical yield is determined with Sr-85 tracer by counting in a gamma well detector. |
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Scope and Application
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This method is applicable to the preparation, separation, and analysis of vegetation, water, air filters and soil for the determination of Sr-90. |
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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 samples should be analyzed used to order to ensure required limits of precision and accuracy are being met. QC samples include instrument calibration standards, blank samples, control samples, "spiked" samples, and replicate 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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