OREAS 23c
Артикул: 23c
OREAS 23c has been prepared from S-Type granodiorite sourced from the
Devonian Bulla Granodiorite Complex located north of Melbourne, Australia. It is
characterised by low background gold of less than 10 parts per billion. Ten
commercial analytical laboratories participated in the program to certify:
Gold by low-level fire assay
Four acid digestion with full ICP-OES and ICP-MS elemental
suites
Specifications
- State: primary
- Matrix: granodiorite
- Mineralisation: barren
- CRM Group: Blank/lithogeochem/low-level
Certified Values
| Analyte | Certified Value | 1SD | 95% CL Low | 95% CL High | Method |
|---|---|---|---|---|---|
| Au, Gold (ppb) | < 10.0 | IND | IND | IND | Pb Fire Assay |
| Ag, Silver (ppm) | 0.091 | 0.011 | 0.073 | 0.109 | 4-Acid Digestion |
| Al, Aluminium (wt.%) | 7.92 | 0.221 | 7.56 | 8.27 | 4-Acid Digestion |
| As, Arsenic (ppm) | 18.1 | 0.98 | 17.1 | 19.2 | 4-Acid Digestion |
| Ba, Barium (ppm) | 1064 | 36 | 1013 | 1115 | 4-Acid Digestion |
| Be, Beryllium (ppm) | 2.97 | 0.157 | 2.78 | 3.16 | 4-Acid Digestion |
| Bi, Bismuth (ppm) | 0.66 | 0.07 | 0.52 | 0.79 | 4-Acid Digestion |
| Ca, Calcium (wt.%) | 2.03 | 0.072 | 1.95 | 2.12 | 4-Acid Digestion |
| Cd, Cadmium (ppm) | 0.17 | 0.012 | 0.15 | 0.19 | 4-Acid Digestion |
| Ce, Cerium (ppm) | 83 | 4.1 | 79 | 86 | 4-Acid Digestion |
| Co, Cobalt (ppm) | 9.77 | 0.344 | 8.97 | 10.57 | 4-Acid Digestion |
| Cr, Chromium (ppm) | 53 | 8 | 45 | 61 | 4-Acid Digestion |
| Cs, Caesium (ppm) | 12.6 | 0.27 | 12.0 | 13.2 | 4-Acid Digestion |
| Cu, Copper (ppm) | 28.0 | 1.54 | 26.0 | 30.0 | 4-Acid Digestion |
| Fe, Iron (wt.%) | 3.22 | 0.086 | 3.13 | 3.32 | 4-Acid Digestion |
| Ga, Gallium (ppm) | 21.2 | 0.81 | 19.9 | 22.4 | 4-Acid Digestion |
| Hf, Hafnium (ppm) | 2.24 | 0.111 | 2.09 | 2.40 | 4-Acid Digestion |
| In, Indium (ppm) | 0.066 | 0.005 | 0.055 | 0.076 | 4-Acid Digestion |
| K, Potassium (wt.%) | 3.04 | 0.075 | 2.96 | 3.12 | 4-Acid Digestion |
| La, Lanthanum (ppm) | 38.7 | 1.92 | 35.4 | 42.1 | 4-Acid Digestion |
| Li, Lithium (ppm) | 51 | 2.0 | 48 | 54 | 4-Acid Digestion |
| Mg, Magnesium (wt.%) | 0.921 | 0.036 | 0.890 | 0.952 | 4-Acid Digestion |
| Mn, Manganese (wt.%) | 0.042 | 0.001 | 0.040 | 0.043 | 4-Acid Digestion |
| Mo, Molybdenum (ppm) | 3.20 | 0.299 | 2.89 | 3.51 | 4-Acid Digestion |
| Na, Sodium (wt.%) | 2.09 | 0.089 | 1.99 | 2.19 | 4-Acid Digestion |
| Nb, Niobium (ppm) | 15.6 | 0.77 | 14.8 | 16.5 | 4-Acid Digestion |
| Ni, Nickel (ppm) | 23.8 | 0.85 | 22.4 | 25.2 | 4-Acid Digestion |
| P, Phosphorus (wt.%) | 0.091 | 0.002 | 0.088 | 0.094 | 4-Acid Digestion |
| Pb, Lead (ppm) | 23.4 | 1.43 | 21.4 | 25.4 | 4-Acid Digestion |
| Rb, Rubidium (ppm) | 185 | 7 | 178 | 192 | 4-Acid Digestion |
| S, Sulphur (wt.%) | 0.117 | 0.009 | 0.108 | 0.126 | 4-Acid Digestion |
| Sb, Antimony (ppm) | 0.34 | 0.022 | 0.30 | 0.38 | 4-Acid Digestion |
| Sc, Scandium (ppm) | 9.85 | 0.220 | 9.70 | 10.01 | 4-Acid Digestion |
| Sn, Tin (ppm) | 4.85 | 0.254 | 4.49 | 5.20 | 4-Acid Digestion |
| Sr, Strontium (ppm) | 202 | 4 | 192 | 211 | 4-Acid Digestion |
| Ta, Tantalum (ppm) | 1.30 | 0.079 | 1.20 | 1.40 | 4-Acid Digestion |
| Th, Thorium (ppm) | 16.4 | 1.44 | 15.0 | 17.8 | 4-Acid Digestion |
| Ti, Titanium (wt.%) | 0.419 | 0.008 | 0.411 | 0.426 | 4-Acid Digestion |
| Tl, Thallium (ppm) | 1.02 | 0.047 | 0.96 | 1.07 | 4-Acid Digestion |
| U, Uranium (ppm) | 4.60 | 0.377 | 3.98 | 5.21 | 4-Acid Digestion |
| V, Vanadium (ppm) | 75 | 2.5 | 71 | 80 | 4-Acid Digestion |
| W, Tungsten (ppm) | 10.3 | 0.82 | 8.7 | 11.9 | 4-Acid Digestion |
| Y, Yttrium (ppm) | 18.8 | 0.71 | 18.3 | 19.3 | 4-Acid Digestion |
| Zn, Zinc (ppm) | 80 | 2.7 | 76 | 84 | 4-Acid Digestion |
| Zr, Zirconium (ppm) | 71 | 4.5 | 66 | 76 | 4-Acid Digestion |
Характеристики продукта
Сертифицированные справочные значения
| Аналит | Сертифицированное значение | Неопределённость (1SD) | 95% доверительный нижний | 95% доверительный верхний | Метод |
|---|---|---|---|---|---|
| Ce - Cerium (ppm) | 83 | - | - | - | 4-Acid Digestion |
| La - Lanthanum (ppm) | 38.7 | - | - | - | 4-Acid Digestion |
| Y - Yttrium (ppm) | 18.8 | - | - | - | 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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