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Material Database:
IAEA-313 226Ra, Th and U in Stream Sediment
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| Type |
Certified reference material |
| Producer |
International Atomic Energy Agency (IAEA)
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| Status |
Available |
| Material |
Powder |
| Reference |
IAEA-313 |
| Catalog (Web) |
http://nucleus.iaea.org/rpst/ReferenceProducts/ReferenceMa
terials/Trace_Elements_Methylmercury/IAEA-313.htm |
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Description
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The stream sediment sample was collected from the Sibolga area of the west coast of northern Sumatra, Indonesia and was donated by the Indonesian Atomic Energy Commission (IAEC). The material was air dried and then ground to pass through a 0.18 mm sieve before being homogenized. The material was dispensed into plastic bottles in 50 g units without any further processing. Subsequently, the samples were irradiated to a dose of 2.5 x 104 Gy using a 60 Co source to ensure long-term stability of the material by inhibiting microbial action. |
Package |
50 g bottle
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Parameter
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| Analyte | Radium | | Specification | 226Ra isotope | | Parameter | Certified value | | Unit | Bk/kg | | Result | 343 (307 – 379 ) | |
| Analyte | Thorium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 77.1 (74.8 – 79.4) | |
| Analyte | Uranium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 18.2 (17.0 – 19.3) | |
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