OREAS 349

OREAS 349 is a replacement for OREAS 350. It is a zinc concentrate certified reference material (CRM) sourced from the McArthur River Mining operation located in the Gulf of Carpentaria region in the Northern Territory of Australia. The mine is situated about 900 km southeast of Darwin. The major sulphides are pyrite, sphalerite and galena, with lesser chalcopyrite, arsenopyrite and marcasite. Twenty-eight laboratories participated in the certification program to determine:

  • Zn by classical volumetric titration
  • Multi-elements by 4-acid digestion with ICP-OES and MS
  • S by infrared combustion furnace
Analyte Certified Value 1SD Expanded Uncertainty Low Expanded Uncertainty High Method
Zn, Zinc (wt.%) 43.49 0.185 43.38 43.60 Classical Wet Chemistry
Zn, Zinc (wt.%) 44.03 1.067 42.64 45.43 4-Acid Digestion
Pb, Lead (wt.%) 2.19 0.062 2.13 2.25 4-Acid Digestion
Ag, Silver (ppm) 85.8 1.77 83.4 88.2 4-Acid Digestion
Al, Aluminium (wt.%) 0.816 0.037 0.791 0.841 4-Acid Digestion
As, Arsenic (ppm) 565 17 542 587 4-Acid Digestion
Be, Beryllium (ppm) < 0.50 IND IND IND 4-Acid Digestion
Bi, Bismuth (ppm) 61 3.8 57 65 4-Acid Digestion
Ca, Calcium (wt.%) 0.621 0.020 0.602 0.639 4-Acid Digestion
Cd, Cadmium (wt.%) 0.116 0.004 0.113 0.119 4-Acid Digestion
Ce, Cerium (ppm) 10.4 1.3 9.1 11.7 4-Acid Digestion
Co, Cobalt (ppm) 127 9 121 133 4-Acid Digestion
Cr, Chromium (ppm) 99 13 88 110 4-Acid Digestion
Cs, Caesium (ppm) 0.59 0.036 0.53 0.65 4-Acid Digestion
Cu, Copper (wt.%) 1.42 0.031 1.38 1.45 4-Acid Digestion
Dy, Dysprosium (ppm) 0.60 0.08 0.42 0.78 4-Acid Digestion
Er, Erbium (ppm) 0.38 0.04 0.27 0.49 4-Acid Digestion
Eu, Europium (ppm) 0.29 0.05 0.18 0.40 4-Acid Digestion
Fe, Iron (wt.%) 9.23 0.306 8.99 9.46 4-Acid Digestion
Ga, Gallium (ppm) 11.6 0.67 10.8 12.4 4-Acid Digestion
Gd, Gadolinium (ppm) 0.82 0.072 0.66 0.97 4-Acid Digestion
Hf, Hafnium (ppm) 0.64 0.07 0.52 0.75 4-Acid Digestion
In, Indium (ppm) 35.4 2.05 33.4 37.4 4-Acid Digestion
K, Potassium (wt.%) 0.226 0.006 0.216 0.236 4-Acid Digestion
Li, Lithium (ppm) 3.03 0.31 2.66 3.40 4-Acid Digestion
Mg, Magnesium (wt.%) 0.265 0.014 0.253 0.276 4-Acid Digestion
Mn, Manganese (wt.%) 0.464 0.008 0.453 0.475 4-Acid Digestion
Mo, Molybdenum (ppm) 170 7 164 177 4-Acid Digestion
Na, Sodium (wt.%) 0.173 0.007 0.165 0.181 4-Acid Digestion
Nb, Niobium (ppm) 0.90 0.09 0.80 1.01 4-Acid Digestion
Nd, Neodymium (ppm) 4.88 0.305 4.30 5.47 4-Acid Digestion
Ni, Nickel (ppm) 74 4.0 71 78 4-Acid Digestion
P, Phosphorus (wt.%) 0.011 0.001 0.010 0.012 4-Acid Digestion
Pr, Praseodymium (ppm) 1.27 0.118 1.10 1.45 4-Acid Digestion
Rb, Rubidium (ppm) 9.55 0.323 8.90 10.19 4-Acid Digestion
Re, Rhenium (ppm) 0.11 0.01 0.09 0.13 4-Acid Digestion
S, Sulphur (wt.%) 28.56 1.378 27.49 29.63 4-Acid Digestion
Sb, Antimony (ppm) 689 45 658 720 4-Acid Digestion
Sc, Scandium (ppm) 1.54 0.124 1.37 1.71 4-Acid Digestion
Se, Selenium (ppm) 27.1 4.0 23.4 30.8 4-Acid Digestion
Sm, Samarium (ppm) 0.98 0.080 0.79 1.16 4-Acid Digestion
Sn, Tin (ppm) 11.3 1.10 10.1 12.6 4-Acid Digestion
Sr, Strontium (ppm) 41.2 5.9 36.9 45.4 4-Acid Digestion
Ta, Tantalum (ppm) 0.082 0.013 0.064 0.099 4-Acid Digestion
Te, Tellurium (ppm) 1.79 0.22 1.56 2.01 4-Acid Digestion
Th, Thorium (ppm) 1.55 0.29 1.27 1.84 4-Acid Digestion
Ti, Titanium (wt.%) 0.040 0.003 0.038 0.043 4-Acid Digestion
Tl, Thallium (ppm) 20.0 1.78 18.4 21.6 4-Acid Digestion
U, Uranium (ppm) 1.59 0.073 1.48 1.70 4-Acid Digestion
V, Vanadium (ppm) 13.2 1.6 11.7 14.6 4-Acid Digestion
W, Tungsten (ppm) 4.19 0.268 3.84 4.54 4-Acid Digestion
Y, Yttrium (ppm) 3.55 0.202 3.25 3.84 4-Acid Digestion
Yb, Ytterbium (ppm) 0.35 0.04 0.24 0.47 4-Acid Digestion
Zr, Zirconium (ppm) 22.8 1.06 21.6 24.0 4-Acid Digestion
S, Sulphur (wt.%) 30.22 0.897 29.53 30.91 Infrared Combustion
Al, Aluminium (wt.%) 0.847 0.020 0.823 0.871 Peroxide Fusion ICP
As, Arsenic (ppm) 606 35 577 634 Peroxide Fusion ICP
Ba, Barium (ppm) 816 37 775 857 Peroxide Fusion ICP
Be, Beryllium (ppm) < 1.00 IND IND IND Peroxide Fusion ICP
Bi, Bismuth (ppm) 62 3.3 57 66 Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.648 0.058 0.593 0.704 Peroxide Fusion ICP
Cd, Cadmium (wt.%) 0.116 0.007 0.108 0.123 Peroxide Fusion ICP
Ce, Cerium (ppm) 11.3 0.91 10.1 12.5 Peroxide Fusion ICP
Co, Cobalt (ppm) 127 10 118 136 Peroxide Fusion ICP
Cr, Chromium (ppm) 116 31 91 141 Peroxide Fusion ICP
Cu, Copper (wt.%) 1.43 0.019 1.40 1.46 Peroxide Fusion ICP
Fe, Iron (wt.%) 9.42 0.175 9.20 9.64 Peroxide Fusion ICP
Ga, Gallium (ppm) 12.2 1.4 10.2 14.3 Peroxide Fusion ICP
Gd, Gadolinium (ppm) 0.95 0.11 0.71 1.18 Peroxide Fusion ICP
In, Indium (ppm) 36.0 2.32 32.6 39.3 Peroxide Fusion ICP
K, Potassium (wt.%) 0.251 0.043 0.220 0.283 Peroxide Fusion ICP
La, Lanthanum (ppm) 6.57 0.473 5.86 7.28 Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.280 0.012 0.269 0.290 Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.472 0.014 0.457 0.487 Peroxide Fusion ICP
Mo, Molybdenum (ppm) 176 15 162 190 Peroxide Fusion ICP
Nd, Neodymium (ppm) 5.14 0.392 4.51 5.76 Peroxide Fusion ICP
Ni, Nickel (ppm) 79 12 64 93 Peroxide Fusion ICP
Pb, Lead (wt.%) 2.18 0.055 2.13 2.24 Peroxide Fusion ICP
Pr, Praseodymium (ppm) 1.35 0.081 1.18 1.52 Peroxide Fusion ICP
Rb, Rubidium (ppm) 10.2 0.67 9.0 11.3 Peroxide Fusion ICP
S, Sulphur (wt.%) 29.97 0.769 29.22 30.73 Peroxide Fusion ICP
Sb, Antimony (ppm) 731 46 684 779 Peroxide Fusion ICP
Si, Silicon (wt.%) 2.96 0.087 2.86 3.06 Peroxide Fusion ICP
Sm, Samarium (ppm) 1.01 0.075 0.83 1.20 Peroxide Fusion ICP
Sr, Strontium (ppm) 50 3.9 46 54 Peroxide Fusion ICP
Th, Thorium (ppm) 1.93 0.171 1.71 2.15 Peroxide Fusion ICP
Ti, Titanium (wt.%) 0.046 0.004 0.041 0.050 Peroxide Fusion ICP
Tl, Thallium (ppm) 20.7 0.98 19.3 22.1 Peroxide Fusion ICP
Tm, Thulium (ppm) < 0.10 IND IND IND Peroxide Fusion ICP
U, Uranium (ppm) 1.74 0.155 1.55 1.93 Peroxide Fusion ICP
V, Vanadium (ppm) 18.0 3.1 14.7 21.2 Peroxide Fusion ICP
W, Tungsten (ppm) 4.94 0.62 3.77 6.11 Peroxide Fusion ICP
Y, Yttrium (ppm) 4.44 0.414 3.91 4.98 Peroxide Fusion ICP
Yb, Ytterbium (ppm) 0.44 0.08 0.23 0.64 Peroxide Fusion ICP
Zn, Zinc (wt.%) 43.96 0.725 43.10 44.83 Peroxide Fusion ICP
Downloads
Certificate DataPack SDS NRAM (412 KB)
Add to Cart
Stock
  • Pack Size
    Price
    Stock Level
  • 10g Sachet
    $7.00
    17,000 +
Specifications