OREAS 26b

OREAS 26b is a basalt blank chip certified reference material. The material was sourced from a quarry containing fresh olivine tholeiite (Newer Volcanics Province), near Melbourne (Victoria), Australia. There are 52 certified values by borate fusion XRF, LOI at 1000°C, Au by fire assay and full ICP-OES/MS suite by 4-acid digestion. Detailed certification data is available for this CRM (OREAS 26b Datapack.xlsx).

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Au, Gold (ppb) < 1 IND IND IND Pb Fire Assay
Cu, Copper (ppm) 43.7 2.54 42.5 45.0 4-Acid Digestion
Fe, Iron (wt.%) 8.05 0.057 8.01 8.08 Borate Fusion XRF
Al2O3, Aluminium(III) oxide (wt.%) 14.39 0.088 14.33 14.45 Borate Fusion XRF
CaO, Calcium oxide (wt.%) 8.57 0.051 8.53 8.61 Borate Fusion XRF
Cr2O3, Chromium(III) oxide (ppm) 524 41 509 540 Borate Fusion XRF
K2O, Potassium oxide (wt.%) 0.833 0.006 0.830 0.837 Borate Fusion XRF
MgO, Magnesium oxide (wt.%) 7.38 0.120 7.30 7.45 Borate Fusion XRF
MnO, Manganese oxide (wt.%) 0.149 0.003 0.147 0.151 Borate Fusion XRF
Na2O, Sodium oxide (wt.%) 3.16 0.028 3.14 3.18 Borate Fusion XRF
P2O5, Phosphorus(V) oxide (wt.%) 0.334 0.008 0.329 0.339 Borate Fusion XRF
SiO2, Silicon dioxide (wt.%) 51.22 0.183 51.12 51.31 Borate Fusion XRF
TiO2, Titanium dioxide (wt.%) 1.85 0.016 1.84 1.86 Borate Fusion XRF
LOI1000, Loss on ignition @1000 °C (wt.%) 0.535 0.087 0.484 0.586 Thermogravimetry
Al, Aluminium (wt.%) 7.47 0.163 7.33 7.61 4-Acid Digestion
Ba, Barium (ppm) 255 7 250 259 4-Acid Digestion
Be, Beryllium (ppm) 0.99 0.054 0.97 1.02 4-Acid Digestion
Ca, Calcium (wt.%) 5.92 0.224 5.76 6.09 4-Acid Digestion
Ce, Cerium (ppm) 36.3 0.91 35.6 36.9 4-Acid Digestion
Co, Cobalt (ppm) 44.4 1.76 43.2 45.6 4-Acid Digestion
Cr, Chromium (ppm) 293 43 261 325 4-Acid Digestion
Cs, Caesium (ppm) 0.67 0.07 0.61 0.72 4-Acid Digestion
Fe, Iron (wt.%) 7.74 0.271 7.53 7.95 4-Acid Digestion
Ga, Gallium (ppm) 20.2 0.69 19.7 20.7 4-Acid Digestion
Hf, Hafnium (ppm) 3.50 0.199 3.34 3.66 4-Acid Digestion
In, Indium (ppm) 0.061 0.004 0.059 0.063 4-Acid Digestion
K, Potassium (wt.%) 0.679 0.021 0.664 0.695 4-Acid Digestion
La, Lanthanum (ppm) 17.4 0.56 16.9 17.9 4-Acid Digestion
Li, Lithium (ppm) 6.38 0.600 5.73 7.03 4-Acid Digestion
Mg, Magnesium (wt.%) 4.30 0.143 4.20 4.41 4-Acid Digestion
Mn, Manganese (wt.%) 0.110 0.006 0.106 0.114 4-Acid Digestion
Mo, Molybdenum (ppm) 1.43 0.078 1.38 1.49 4-Acid Digestion
Na, Sodium (wt.%) 2.34 0.099 2.27 2.42 4-Acid Digestion
Nb, Niobium (ppm) 21.3 0.80 20.9 21.8 4-Acid Digestion
Ni, Nickel (ppm) 149 3 147 151 4-Acid Digestion
P, Phosphorus (wt.%) 0.141 0.003 0.139 0.144 4-Acid Digestion
Pb, Lead (ppm) 2.81 0.32 2.56 3.06 4-Acid Digestion
Rb, Rubidium (ppm) 20.1 0.69 19.6 20.6 4-Acid Digestion
S, Sulphur (wt.%) 0.010 0.002 0.009 0.011 4-Acid Digestion
Sc, Scandium (ppm) 19.6 1.24 18.7 20.5 4-Acid Digestion
Sn, Tin (ppm) 1.83 0.31 1.64 2.02 4-Acid Digestion
Sr, Strontium (ppm) 412 17 400 423 4-Acid Digestion
Ta, Tantalum (ppm) 1.36 0.123 1.26 1.45 4-Acid Digestion
Th, Thorium (ppm) 2.60 0.097 2.54 2.66 4-Acid Digestion
Ti, Titanium (wt.%) 1.06 0.032 1.03 1.08 4-Acid Digestion
Tl, Thallium (ppm) 0.059 0.008 0.054 0.065 4-Acid Digestion
U, Uranium (ppm) 0.65 0.057 0.61 0.69 4-Acid Digestion
V, Vanadium (ppm) 155 10 147 162 4-Acid Digestion
W, Tungsten (ppm) 0.50 0.07 0.45 0.55 4-Acid Digestion
Y, Yttrium (ppm) 21.2 0.77 20.6 21.8 4-Acid Digestion
Zn, Zinc (ppm) 110 5 107 114 4-Acid Digestion
Zr, Zirconium (ppm) 135 7 129 140 4-Acid Digestion
Downloads
Certificate DataPack SDS NRAM (226 KB)
Archived

This CRM is no longer available.
Information is provided for reference only.

Specifications