Table 3.
Detection limits and measured and certified values of element concentrations in Standard Reference Materials.
| Andesite, AGV – 2 (United States Geological Survey) |
Essexite Gabbro – 1A (Russian Geochemical Standard, SRM-521-84P) |
Black shale SLg – 1 (Russian Geochemical Standard, SRM-8550-04) |
|||||
|---|---|---|---|---|---|---|---|
| Element | Detectionlimit | Measured value | Certified value ± SD | Measured values | Certified value ± SD | Measured values | Certified value ± SD |
| Major elements, % | |||||||
| Na | 0.003 | 2.75 | 3.11 ± 0.09 | 2.08 | 2.09 ± 0.03 | 0.98 | 0.94 ± 0.1 |
| Mg | 0.002 | 1.07 | 1.08 ± 0.02 | 4.46 | 4.22 ± 0.06 | − | 1.85 ± 0.05 |
| Al | 0.002 | 6.82 | 8.95 ± 0.11 | 7.83 | 7.87 ± 0.04 | 8.6 | 8.2 ± 0.16 |
| P | 0.004 | 0.21 | 0.21 ± 0.01 | 0.46 | 0.44 ± 0.01 | 0.05 | 0.05 ± 0.004 |
| K | 0.003 | 2.16 | 2.39 ± 0.09 | 2.41 | 2.46 ± 0.041 | 2.49 | 2.37 ± 0.09 |
| Ca | 0.005 | 3.43 | 3.72 ± 0.09 | 7.79 | 7.84 ± 0.06 | 0.8 | 0.79 ± 0.07 |
| Ti | 0.0001 | 0.58 | 0.63 ± 0.13 | 1.0 | 1.03 ± 0.02 | 0.52 | 0.53 ± 0.02 |
| Mn | 0.0002 | 0.062 | 0.077 ± 0.002 | 0.12 | 0.13 ± 0.008 | 0.085 | 0.085 ± 0.001 |
| Fe | 0.003 | 4.06 | 4.68 ± 0.09 | 8.18 | 8.16 ± 0.17 | 5.32 | 5.23 ± 0.12 |
| Trace elements, µg g–1 | |||||||
| Li | 0.04 | 8.81 | 11* | 14.2 | 14 ± 3 | 55.3 | 50 ± 8 |
| Be | 0.01 | 2.1 | 2.3 ± 0.4 | 2.2 | 2.0 ± | 2.0 | 2.4* |
| V | 2 | 130 | 120 ± 5 | 249 | 240 ± 20 | 135 | 122 ± 15 |
| Cr | 1 | 15.6 | 17 ± 2 | 51.7 | 55 ± 4 | 122 | 116 ± 8 |
| Co | 0.2 | 16.8 | 16 ± 1 | 45.0 | 40 ± 5 | 19.3 | 20 ± 3 |
| Ni | 1 | 18.6 | 19 ± 3 | 38.1 | 50 ± 5 | 54.2 | 50 ± 7 |
| Cu | 1 | 48.5 | 53 ± 4 | 61.2 | 68 ± 7 | 37.2 | 39 ± 7 |
| Zn | 1 | 81.0 | 86 ± 8 | 122.3 | 120 ± 10 | 81.9 | 97 ± 13 |
| Ga | 0.1 | 22.2 | 20 ± 1 | 22 | 19 ± 2 | 18.8 | 18 ± 3 |
| As | 0.1 | 0.5 | n.d. | 1.8 | 1.8 ± 0.2 | 26.3 | 46 ± 8 |
| Rb | 0.1 | 77.1 | 68.6 ± 2.3 | 88.5 | 73 ± 4 | 114 | 112 ± 11 |
| Sr | 0.1 | 672 | 658 ± 17 | 2454 | 2300 ± 200 | 146 | 142 ± 15 |
| Zr | 0.1 | 255 | 230 ± 4 | 284 | 240 ± 20 | 186 | 176 ± 16 |
| Nb | 0.05 | 14.1 | 15 ± 1 | 10.1 | 8 ± 1 | 11.4 | 12 ± 2 |
| Mo | 0.08 | 2.0 | n.d. | 1.2 | 1.5 ± 0.5 | 0.84 | 0.8* |
| Ag | 0.07 | 0.091 | n.d. | 0.11 | 0.10 ± 0.05 | 0.5 | 0.47 ± 0.08 |
| Cd | 0.06 | 0.086 | n.d. | < d/l | n.d. | 0.3 | 0.4* |
| Sn | 0.3 | 2.7 | 2.3 ± 0.4* | 2.7 | 3.7 ± 0.6* | 3 | 3.2* |
| Sb | 0.05 | 0.51 | 0.6* | 0.31 | n.d. | 1.2 | 1* |
| Cs | 0.01 | 1.2 | 1.16 ± 0.08* | 3.9 | 3.8 ± 0.4 | 4.21 | 4.0 ± 0.7 |
| Ba | 0.08 | 1160 | 1140 ± 32 | 1427 | 1300 ± 100 | 378 | 376 ± 46 |
| Tl | 0.003 | 0.32 | 0.27* | 0.17 | n.d. | 0.61 | n.d. |
| Pb | 0.1 | 14.0 | 13 ± 1 | 20.6 | 17 ± 2 | 15.8 | 15 ± 3 |
| Bi | 0.006 | 0.043 | n.d. | 0.047 | n.d. | 0.11 | n.d. |
| Th | 0.03 | 6.6 | 6.1 ± 0.6 | 10.1 | 9 ± 1 | 8 | 7.1 ± 1.1 |
| U | 0.009 | 1.9 | 1.88 ± 0.16 | 2.8 | 2.0 ± 0.5 | 1.7 | 1.7 ± 0.2 |
| Rare-earth elements, µg g–1 | |||||||
| Sc | 0.1 | 12.2 | 13 ± 1 | 21.8 | 27 ± 3 | 22.5 | 20 ± 3 |
| Y | 0.01 | 20.0 | 20 ± 1 | 33.7 | 30 ± 4 | 26 | 26 ± 4 |
| La | 0.02 | 41.7 | 38 ± 1 | 90.7 | 80 ± 20 | 28.6 | 28 ± 5 |
| Ce | 0.03 | 76.1 | 68 ± 3 | 204 | 150 ± 10 | 59.1 | 53 ± 8 |
| Pr | 0.01 | 8.4 | 8.3 ± 0.6 | 26 | 15 ± 5 | 7 | 6 ± 1 |
| Nd | 0.01 | 33.1 | 30 ± 2 | 100 | 70 ± 10 | 27.6 | 25 ± 4 |
| Sm | 0.01 | 5.8 | 5.7 ± 0.3* | 17.6 | 17 ± 1 | 5.6 | 5.4 ± 0.8 |
| Eu | 0.01 | 1.6 | 1.54 ± 0.1* | 4.0 | 5 ± 1 | 1.3 | 1.2 ± 0.2 |
| Gd | 0.01 | 4.9 | 4.69 ± 0.26 | 12.3 | 10 ± 3 | 5.1 | 4.5 ± 0.8 |
| Tb | 0.003 | 0.69 | 0.64 ± 0.04 | 1.5 | 1.4 ± 0.2 | 0.77 | 0.74* |
| Dy | 0.009 | 3.8 | 3.6 ± 0.2 | 6.9 | 6 ± 1 | 4.7 | 4.4* |
| Ho | 0.007 | 0.70 | 0.71 ± 0.08* | 1.2 | 1.2 ± 0.3 | 0.91 | 0.92* |
| Er | 0.003 | 2.0 | 1.79 ± 0.11* | 2.9 | 3.2 ± 0.7 | 2.8 | 2.4* |
| Tm | 0.003 | 0.27 | 0.26 ± 0.02 | 0.36 | 0.5 ± 0.2 | 0.37 | 0.33* |
| Yb | 0.01 | 1.8 | 1.6 ± 0.20 | 2.2 | 2.9 ± 0.5 | 2.8 | 2.7 ± 0.4 |
| Lu | 0.01 | 0.26 | 0.25 ± 0.01* | 0.32 | 0.3* | 0.41 | 0.4 ± 0.07 |
⁎
Information values