OREAS 24d
رمز المنتج: 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 |
مواصفات المنتج
القيم المرجعية المعتمدة
| المادة المحللة | القيمة المعتمدة | عدم اليقين (1SD) | حد الثقة الأدنى 95% | حد الثقة الأعلى 95% | الطريقة |
|---|---|---|---|---|---|
| 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 = الانحراف المعياري | CL = حدود الثقة 95%
الطرق: AR = الماء الملكي، 4-Acid = هضم رباعي الحمض، LBF = صهر بورات الليثيوم، FA/AAS = فحص النار / AAS، LECO = تحليل احتراق LECO
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