OREAS 24d
Артикул: 24d
OREAS 24d was prepared from olivine tholeiitic basalt from the Quaternary
Newer Volcanics Province, Victoria, Australia. It is characterised by very low
background gold of less than 1 parts per billion. Ten commercial analytical
laboratories participated in the program to characterise (in addition to gold by
fire assay) Ag, Al, As, Ba, Be, Bi, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, Ga, Hf, In,
K, La, Li, Lu, Mg, Mn, Mo, Na, Nb, Ni, P, Pb, Rb, S, Sc, Sn, Sr, Ta, Tb, Th, Ti,
U, V, W, Y, Zn and Zr by 4-acid digestion with ICP-OES or ICP-MS
finish.
Specifications
- State: primary
- Matrix: basalt
- Mineralisation: barren
- CRM Group: Blank/lithogeochem/low-level
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Au, Gold (ppb) | < 1 | IND | IND | IND | Pb Fire Assay |
| Cu, Copper (ppm) | 43.2 | 2.29 | 41.6 | 44.8 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 137 | 7 | 132 | 141 | 4-Acid Digestion |
| Ag, Silver (ppm) | < 0.200 | IND | IND | IND | 4-Acid Digestion |
| Al, Aluminium (wt.%) | 7.77 | 0.212 | 7.61 | 7.93 | 4-Acid Digestion |
| As, Arsenic (ppm) | 1.35 | 0.33 | 1.13 | 1.57 | 4-Acid Digestion |
| Ba, Barium (ppm) | 536 | 16 | 526 | 547 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 2.14 | 0.143 | 2.06 | 2.21 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 0.030 | 0.007 | 0.025 | 0.034 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 5.62 | 0.251 | 5.44 | 5.80 | 4-Acid Digestion |
| Cd, Cadmium (ppm) | 0.12 | 0.02 | 0.10 | 0.14 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 59 | 1.5 | 58 | 60 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 44.2 | 2.42 | 42.5 | 46.0 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 147 | 21 | 131 | 163 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 1.18 | 0.066 | 1.13 | 1.22 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 7.97 | 0.381 | 7.70 | 8.24 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 22.1 | 0.84 | 21.4 | 22.7 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 4.70 | 0.325 | 4.44 | 4.97 | 4-Acid Digestion |
| In, Indium (ppm) | 0.074 | 0.011 | 0.071 | 0.076 | 4-Acid Digestion |
| K, Potassium (wt.%) | 1.69 | 0.059 | 1.65 | 1.73 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 29.1 | 2.01 | 27.7 | 30.5 | 4-Acid Digestion |
| Li, Lithium (ppm) | 10.8 | 0.65 | 10.2 | 11.3 | 4-Acid Digestion |
| Lu, Lutetium (ppm) | 0.23 | 0.03 | 0.20 | 0.26 | 4-Acid Digestion |
| Mg, Magnesium (wt.%) | 4.56 | 0.157 | 4.45 | 4.67 | 4-Acid Digestion |
| Mn, Manganese (wt.%) | 0.115 | 0.005 | 0.112 | 0.119 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 4.46 | 0.350 | 4.15 | 4.78 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 2.33 | 0.109 | 2.25 | 2.41 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 44.6 | 4.14 | 41.0 | 48.2 | 4-Acid Digestion |
| P, Phosphorus (wt.%) | 0.252 | 0.016 | 0.241 | 0.264 | 4-Acid Digestion |
| Pb, Lead (ppm) | 3.56 | 0.44 | 3.24 | 3.87 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 37.2 | 4.2 | 34.4 | 40.1 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.042 | 0.004 | 0.038 | 0.046 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 20.0 | 1.11 | 19.2 | 20.7 | 4-Acid Digestion |
| Sn, Tin (ppm) | 1.89 | 0.088 | 1.82 | 1.95 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 748 | 37 | 722 | 775 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 3.01 | 0.240 | 2.80 | 3.22 | 4-Acid Digestion |
| Tb, Terbium (ppm) | 0.79 | 0.044 | 0.75 | 0.83 | 4-Acid Digestion |
| Th, Thorium (ppm) | 3.78 | 0.326 | 3.53 | 4.03 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 1.22 | 0.053 | 1.17 | 1.26 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 0.12 | 0.02 | 0.11 | 0.14 | 4-Acid Digestion |
| U, Uranium (ppm) | 1.40 | 0.089 | 1.34 | 1.46 | 4-Acid Digestion |
| V, Vanadium (ppm) | 201 | 7 | 197 | 206 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 20.4 | 0.90 | 19.8 | 21.1 | 4-Acid Digestion |
| Zn, Zinc (ppm) | 104 | 7 | 99 | 109 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 205 | 6 | 201 | 209 | 4-Acid Digestion |
Характеристики продукта
Сертифицированные справочные значения
| Аналит | Сертифицированное значение | Неопределённость (1SD) | 95% доверительный нижний | 95% доверительный верхний | Метод |
|---|---|---|---|---|---|
| Ce - Cerium (ppm) | 59 | - | - | - | 4-Acid Digestion |
| La - Lanthanum (ppm) | 29.1 | - | - | - | 4-Acid Digestion |
| Lu - Lutetium (ppm) | 0.23 | - | - | - | 4-Acid Digestion |
| Tb - Terbium (ppm) | 0.79 | - | - | - | 4-Acid Digestion |
| Y - Yttrium (ppm) | 20.4 | - | - | - | 4-Acid Digestion |
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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