OREAS 160
Артикул: 160
OREAS 160 is a copper blank certified reference material (CRM) prepared and
certified by Ore Research & Exploration Pty Ltd. The material was sourced
from Xstrata’s Mt Isa copper deposits located near the township of Mt Isa in
north-west Queensland. The deposits are hosted by brecciated siliceous and
dolomitic rock masses within the Urquhart Shale comprising complex and
dissociated veins with chalcopyrite, pyrite and pyrrhotite with grades of 3-4%
copper. OREAS 160 is sourced from barren copper material and is one of a suite
of seven CRMs characterised for Cu, Fe, S, CaO, MgO, Al2O3, SiO2, Ag, Pb, Zn and
Co by both sodium peroxide fusion ICP and 4-acid ICP methods.
Specifications
- State: primary
- Matrix: siliceous breccia
- Mineralisation: barren
- CRM Group: Cu ore, Blank/lithogeochem/low-level
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Cu, Copper (ppm) | 13.0 | 2.0 | 12.0 | 14.0 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 1.13 | 0.060 | 1.08 | 1.17 | Peroxide Fusion ICP |
| Co, Cobalt (ppm) | 2.80 | 0.50 | 2.50 | 3.10 | 4-Acid Digestion |
| Ag, Silver (ppm) | < 2.00 | IND | IND | IND | Peroxide Fusion ICP |
| Al2O3, Aluminium(III) oxide (wt.%) | 5.01 | 0.080 | 4.96 | 5.05 | Peroxide Fusion ICP |
| CaO, Calcium oxide (wt.%) | 0.150 | 0.040 | 0.120 | 0.180 | Peroxide Fusion ICP |
| Co, Cobalt (ppm) | < 8.00 | IND | IND | IND | Peroxide Fusion ICP |
| Cu, Copper (wt.%) | < 0.020 | IND | IND | IND | Peroxide Fusion ICP |
| MgO, Magnesium oxide (wt.%) | 0.620 | 0.040 | 0.590 | 0.650 | Peroxide Fusion ICP |
| Pb, Lead (ppm) | 7.00 | 2.00 | 2.00 | 13.00 | Peroxide Fusion ICP |
| S, Sulphur (wt.%) | 0.040 | 0.020 | 0.030 | 0.050 | Peroxide Fusion ICP |
| SiO2, Silicon dioxide (wt.%) | 88.70 | 4.800 | 84.90 | 92.50 | Peroxide Fusion ICP |
| Zn, Zinc (ppm) | < 30.0 | IND | IND | IND | Peroxide Fusion ICP |
| Ag, Silver (ppm) | < 0.200 | IND | IND | IND | 4-Acid Digestion |
| Al2O3, Aluminium(III) oxide (wt.%) | 5.04 | 0.270 | 4.84 | 5.24 | 4-Acid Digestion |
| CaO, Calcium oxide (wt.%) | 0.146 | 0.005 | 0.142 | 0.149 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 1.15 | 0.040 | 1.13 | 1.18 | 4-Acid Digestion |
| MgO, Magnesium oxide (wt.%) | 0.640 | 0.040 | 0.610 | 0.660 | 4-Acid Digestion |
| Pb, Lead (ppm) | 6.60 | 0.70 | 6.00 | 7.20 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.029 | 0.002 | 0.027 | 0.031 | 4-Acid Digestion |
| Zn, Zinc (ppm) | 7.00 | 2.00 | 5.00 | 9.00 | 4-Acid Digestion |
Характеристики продукта
Сертифицированные справочные значения
| Аналит | Сертифицированное значение | Неопределённость (1SD) | 95% доверительный нижний | 95% доверительный верхний | Метод |
|---|
SD = стандартное отклонение | CL = 95% доверительные пределы
Методы: AR = царская водка, 4-Acid = четырёхкислотное разложение, LBF = сплавление с боратом лития, FA/AAS = пробирный анализ / AAS, LECO = анализ горения LECO
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