Certified Rare Earth Reference Material GRE-05

Certified Rare Earth Reference Material GRE-05 Analyte Units Average Standard Deviation Count 95% Confidence Interval Certificate of Analysis Be / ppm / 100.89 / 7.27 / 40 / + / - 2.49 Ce / ppm / 121.05 / 6.02 / 49 / + / - 2.07 Dy / ppm / 195.6 / 12.6 / 50 / + / - 4.3 Er / ppm / 149.16 / 5.99 / 40 / + / - 2.05 Eu / ppm / 3.29 / 0.2 / 49 / + / - 0.07 Ga / ppm / 99.91 / 9.9 / 50 / + / - 3.4 Gd / ppm / 74 / 4.31 / 50 / + / - 1.48 Hf / ppm / 310.7 / 21.4 / 40 / + / - 7.3 Ho / ppm / 44.7 / 2.14 / 50 / + / - 0.73 La / ppm / 27.38 / 2.04 / 47 / + / - 0.7 Li / ppm / 241 Lu / ppm / 19.32 / 0.71 / 50 / + / - 0.24 Nb / ppm / 2832 / 129 / 30 / + / - 44 Nd / ppm / 68.39 / 4.91 / 49 / + / - 1.68 Pr / ppm / 17.79 / 1.05 / 49 / + / - 0.36 Sm / ppm / 46.14 / 2.81 / 50 / + / - 0.96 Sn / ppm / 308 / 16 / 47 / + / - 5.5 Ta / ppm / 181.9 / 17.7 / 50 / + / - 6.1 Tb / ppm / 24.55 / 0.87 / 50 / + / - 0.3 Th / ppm / 314.51 / 6.93 / 40 / + / - 2.37 Tm / ppm / 23.39 / 0.96 / 50 / + / - 0.33 U / ppm / 42.8 / 1.84 / 50 / + / - 0.63 W / ppm / 9.04 / 1.35 / 49 / + / - 0.46 Y / ppm / 1076.3 / 85.8 / 50 / + / - 29.4 Yb / ppm / 145.28 / 5.14 / 50 / + / - 1.76 Zr / ppm / 7133 / 594 / 40 / + / - 204