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Material Database:
IAEA-336 Trace and Minor Elements in Lichen
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| Type |
Certified reference material |
| Producer |
International Atomic Energy Agency (IAEA)
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| Status |
Available |
| Material |
Powder |
| Reference |
IAEA-336 |
| Catalog (Web) |
http://nucleus.iaea.org/rpst/ReferenceProducts/ReferenceMa
terials/Trace_Elements_Methylmercury/IAEA-336.htm |
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Description
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The epiphytic lichen (IAEA-336) was collected from areas in Portugal remote from pollution sources. These areas included Gavião (center of Portugal), Ourique and Serra do Cladeirão (south of Portugal). The lichen was harvested from both the Cistus ladanifer and Quercus species of tree. About 25 kilograms were collected, separated from debris and other epiphytic lichen species by visual inspection, then washed in deionized water and oven-dried at 40 °C for 24 hours. The lichen was ground using a Teflon “Mikro-dismembrator” mill. The final material was passed through a 125 μm sieve and mixed in a rotating plastic drum. This material was γ-sterilized to ensure long-term stability of the material by inhibiting microbial action. |
Package |
20 g bottle
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Parameter
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| Analyte | Antimony | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.073 (0.063 - 0.083) | |
| Analyte | Arsenic | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.63 (0.55 - 0.71) | |
| Analyte | Barium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 6.4 (5.3 - 7.5) | |
| Analyte | Bromine | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 12.9 (11.2 - 14.6) | |
| Analyte | Cerium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 1.28 (1.11 - 1.45) | |
| Analyte | Cesium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.110 (0.097 - 0.123) | |
| Analyte | Cobalt | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.29 (0.24 - 0.34) | |
| Analyte | Copper | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 3.6 (3.1 - 4.1 ) | |
| Analyte | Iron | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 430 (380 - 480) | |
| Analyte | Lanthanum | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.66 (0.56 - 0.76 ) | |
| Analyte | Manganese | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 63 (56 - 70) | |
| Analyte | Mercury | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.20 (0.16 - 0.24) | |
| Analyte | Potassium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 1840 (1640 - 2040) | |
| Analyte | Samarium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.106 (0.092 - 0.120) | |
| Analyte | Selenium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.22 (0.18 - 0.26) | |
| Analyte | Sodium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 320 (280 - 360) | |
| Analyte | Strontium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 9.3 (8.2 - 10.4) | |
| Analyte | Thorium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.14 (0.12 - 0.16) | |
| Analyte | Zinc | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 30.4 (27.0 - 33.8) | |
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