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Material Database:
NIES CRM 29: Water hyacinth
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| Type |
Certified reference material |
| Producer |
National Institute for Environmental Studies (NIES)
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| Status |
Available |
| Material |
Powder |
| Reference |
CRM 29 |
| Catalog (Web) |
http://www.nies.go.jp/labo/crm-e/waterhyacinth.html |
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Description
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This environmental certified reference material (CRM) was developed and certified by the National Institute for Environmental Studies (NIES) for the determination of multi-elements in water hyacinth (Eichhornia crassipes) and similar water plants. The water hyacinth for this CRM was control-cultivated in a managed water pool in the NIES Aquatron. The raw material (about 300 kg) was washed with distilled water, dried, crushed in a rotor mill, sieved (106μm sieve), and homogenized with a V-blender. All procedures complied with ISO GUIDE 34. The powdered water hyacinth (about 9 kg) was placed in amber glass bottles (5 g in each bottle), and stabilized by 60Co irradiation (2.5 Mrad) . keywords: environmental material , biological material , plant material, trace elements , heavy metals |
Package |
5 g in amber glass bottle
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Parameter
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| Analyte | Barium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 48.2 ± 3.0 | |
| Analyte | Calcium | | Specification | total element concentration | | Parameter | Certified value | | Unit | % | | Result | 1.63 ± 0.13 | |
| Analyte | Cobalt | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 0.499 ± 0.034 | |
| Analyte | Copper | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 4.48 ± 0.36 | |
| Analyte | Iron | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 345 ± 21 | |
| Analyte | Magnesium | | Specification | total element concentration | | Parameter | Certified value | | Unit | % | | Result | 0.856 ± 0.042 | |
| Analyte | Manganese | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 53.9 ± 5.6 | |
| Analyte | Molybdenum | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 3.06 ± 0.27 | |
| Analyte | Phosphorous | | Specification | total element concentration | | Parameter | Certified value | | Unit | % | | Result | 0.515 ± 0.056 | |
| Analyte | Sodium | | Specification | total element concentration | | Parameter | Certified value | | Unit | % | | Result | 0.665 ± 0.050 | |
| Analyte | Strontium | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 60.0 ± 4.0 | |
| Analyte | Sulfur | | Specification | total element concentration | | Parameter | Certified value | | Unit | % | | Result | 0.231 ± 0.023 | |
| Analyte | Zinc | | Specification | total element concentration | | Parameter | Certified value | | Unit | mg/kg | | Result | 145 ± 15 | |
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