AN-ZP02
Silty clay loam contaminated with some heavy metals
contents of element extractable fractions with aqua regia according to ISO 11466
Packing:
50 g of powder of the respective soil with a particle size of less than 100 µm in amber glass bottle.
Intended use:
This certified reference material is intended primarily for use in realizing metrological traceability, validation of analytical methods and the transfer of property values by total element contents to other materials of similar composition.
Recommended analytical methods for method dependent measurements:
Flame AAS, ETA-AAS, ICP-OES, ICP-MS, AMA-254
Certified and indicative values of contents of element fractions extractable by aqua regia in CRM AN-ZP02 and thair associated uncertainties.
| Element |
Concentration [mg/kg] |
Uncertainty [mg/kg] |
| As |
16.0 |
1.0 |
| Ba |
158 |
7 |
| Be |
0.64 |
0.05 |
| Cd |
1.63 |
0.11 |
| Co |
27.2 |
1.1 |
| Cr |
68.1 |
2.3 |
| Cu |
22.0 |
1.2 |
| Hg-total |
0.136 |
0.010 |
| Hg-extract |
(0.149) |
- |
| Mn |
1 802 |
70 |
| Mo |
0.75 |
0.07 |
| Ni |
9.75 |
0.57/td>
|
| Pb |
205 |
8 |
| Sb |
8.03 |
0.54 |
| Sn |
(4.65) |
- |
| Sr |
31.6 |
1.5 |
| Tl |
N.M. |
- |
| V |
138 |
3 |
| Zn |
173 |
7 |
All values corrected to a dry weight at 105 °C
Uncertainty - expanded combined uncertainty (k=2)
() Indicative value
N.M. not measured
Matrix composition of CRM AN-ZP02 (% of the oxides dry weight at 105°C)
| Analyte |
Matrix composition (% oxides, dry weight) |
| SiO2 |
60.30 |
| Al2O3 |
12.92 |
| CaO |
2.07 |
| MgO |
1.62 |
| MnO |
0.263 |
| Li2O |
0.006 |
| Fe2O3 |
8.33 |
| K2O |
0.99 |
| Na2O |
2.89 |
| P2O5 |
0.212 |
| TiO2 |
1.56 |
| Total nitrogen |
0.17 |
| H2O (105 °C) |
2.61 |
| Loss on ignition (900 °C) |
6.67 |
