OREAS C27c

OREAS C27c is a rhyodacite blank chip certified reference material
(CRM). In addition to the 500g and 1kg pack sizes (see list under ‘Add to
cart’), 200kg drums are available upon request for AUD$3140 (please contact
sales@ore.com.au).


The material was sourced from a quarry containing fresh rhyodacite near
Melbourne (Victoria), Australia. OREAS C27c contains 52 certified values by full
ICP-OES/MS suite by 4-acid digestion and Au by fire assay. Indicative
values for 12 additional elements are also available. Tabulated round robin
laboratory results of all elements together with analytical method codes,
uncorrected means, medians, standard deviations, relative standard deviations
and per cent deviation of lab means from the corrected mean of means (PDM3) are
presented in the detailed certification data for this CRM (OREAS C27c
DataPack.xlsx
).

Analyte Certified Value 1SD 95% Confidence Low 95% Confidence High Method
Au, Gold (ppb) 2 IND IND IND Pb Fire Assay
Cu, Copper (ppm) 7.49 1.66 6.47 8.52 4-Acid Digestion
Pb, Lead (ppm) 27.9 2.24 26.6 29.3 4-Acid Digestion
Al, Aluminium (wt.%) 7.51 0.202 7.42 7.60 4-Acid Digestion
Ba, Barium (ppm) 3001 148 2896 3105 4-Acid Digestion
Be, Beryllium (ppm) 3.26 0.124 3.19 3.33 4-Acid Digestion
Bi, Bismuth (ppm) 0.10 0.01 0.10 0.11 4-Acid Digestion
Ca, Calcium (wt.%) 1.31 0.042 1.28 1.33 4-Acid Digestion
Cd, Cadmium (ppm) 0.40 0.030 0.38 0.42 4-Acid Digestion
Ce, Cerium (ppm) 92 6.4 88 96 4-Acid Digestion
Co, Cobalt (ppm) 2.74 0.39 2.63 2.85 4-Acid Digestion
Cs, Caesium (ppm) 7.45 0.349 7.24 7.67 4-Acid Digestion
Dy, Dysprosium (ppm) 3.64 0.259 3.38 3.89 4-Acid Digestion
Er, Erbium (ppm) 0.98 0.077 0.90 1.06 4-Acid Digestion
Eu, Europium (ppm) 1.48 0.26 1.20 1.75 4-Acid Digestion
Fe, Iron (wt.%) 2.61 0.170 2.53 2.70 4-Acid Digestion
Ga, Gallium (ppm) 23.1 0.83 22.5 23.7 4-Acid Digestion
Gd, Gadolinium (ppm) 6.33 0.511 5.86 6.80 4-Acid Digestion
Hf, Hafnium (ppm) 5.70 0.331 5.48 5.93 4-Acid Digestion
In, Indium (ppm) 0.062 0.003 0.061 0.064 4-Acid Digestion
K, Potassium (wt.%) 3.12 0.153 3.03 3.21 4-Acid Digestion
La, Lanthanum (ppm) 45.4 3.73 43.0 47.9 4-Acid Digestion
Li, Lithium (ppm) 37.6 2.75 35.6 39.6 4-Acid Digestion
Lu, Lutetium (ppm) 0.068 0.010 0.056 0.080 4-Acid Digestion
Mg, Magnesium (wt.%) 0.160 0.014 0.153 0.167 4-Acid Digestion
Mn, Manganese (wt.%) 0.033 0.002 0.032 0.034 4-Acid Digestion
Mo, Molybdenum (ppm) 3.64 0.46 3.39 3.89 4-Acid Digestion
Na, Sodium (wt.%) 2.59 0.105 2.52 2.65 4-Acid Digestion
Nb, Niobium (ppm) 19.7 1.13 19.0 20.4 4-Acid Digestion
Nd, Neodymium (ppm) 40.6 2.14 38.5 42.7 4-Acid Digestion
Ni, Nickel (ppm) 4.62 0.89 4.19 5.05 4-Acid Digestion
P, Phosphorus (wt.%) 0.036 0.003 0.034 0.038 4-Acid Digestion
Pr, Praseodymium (ppm) 11.2 0.44 10.6 11.7 4-Acid Digestion
Rb, Rubidium (ppm) 150 6 146 153 4-Acid Digestion
S, Sulphur (wt.%) 0.009 0.002 0.008 0.010 4-Acid Digestion
Sb, Antimony (ppm) 1.22 0.13 1.14 1.30 4-Acid Digestion
Sc, Scandium (ppm) 4.21 0.325 4.04 4.39 4-Acid Digestion
Sm, Samarium (ppm) 7.81 0.231 7.59 8.04 4-Acid Digestion
Sn, Tin (ppm) 3.98 0.145 3.88 4.08 4-Acid Digestion
Sr, Strontium (ppm) 186 8 181 191 4-Acid Digestion
Ta, Tantalum (ppm) 1.46 0.050 1.42 1.51 4-Acid Digestion
Tb, Terbium (ppm) 0.82 0.044 0.78 0.86 4-Acid Digestion
Th, Thorium (ppm) 15.3 1.01 14.7 15.9 4-Acid Digestion
Ti, Titanium (wt.%) 0.121 0.006 0.117 0.125 4-Acid Digestion
Tl, Thallium (ppm) 0.87 0.060 0.83 0.91 4-Acid Digestion
U, Uranium (ppm) 5.94 0.378 5.71 6.17 4-Acid Digestion
V, Vanadium (ppm) 5.19 1.09 4.62 5.76 4-Acid Digestion
W, Tungsten (ppm) 2.08 0.206 1.96 2.19 4-Acid Digestion
Y, Yttrium (ppm) 15.0 0.93 14.4 15.5 4-Acid Digestion
Yb, Ytterbium (ppm) 0.54 0.040 0.51 0.58 4-Acid Digestion
Zn, Zinc (ppm) 118 3 116 120 4-Acid Digestion
Zr, Zirconium (ppm) 211 18 197 225 4-Acid Digestion
Add to cart
Pricing
  • 500g Bag
    $13.05
  • 1Kg Bag
    $22.25
Specifications
CRM Group

Downloads

Certificate Datapack SDS NRAM (221 KiB)