Table T8. BHVO-2 check standard data for ICP-AES analysis, Expedition 330.
| Element |
Mean (N = 4) |
2σ | Recommended |
|---|---|---|---|
| Major element (wt%): | |||
| SiO2 | 49.61 | 0.30 | 49.90 |
| TiO2 | 2.70 | 0.04 | 2.73 |
| Al2O3 | 13.63 | 0.31 | 13.50 |
| Fe2O3T | 12.29 | 0.43 | 12.30 |
| MnO | 0.16 | 0.00 | 0.17 |
| MgO | 7.22 | 0.10 | 7.23 |
| CaO | 11.47 | 0.30 | 11.40 |
| Na2O | 2.20 | 0.23 | 2.22 |
| K2O | 0.48 | 0.08 | 0.43 |
| P2O5 | 0.25 | 0.05 | 0.27 |
| Trace element (ppm): | |||
| Ba | 128 | 14 | 130 |
| Sr | 388 | 25 | 389 |
| Zr | 163 | 10 | 172 |
| Y | 24 | 8 | 26 |
| V | 317 | 12 | 317 |
| Sc | 29 | 6 | 32 |
| Cu | 126 | 6 | 127 |
| Zn | 101 | 5 | 103 |
| Co | 53 | 2 | 45 |
| Cr | 266 | 58 | 280 |
| Ni | 117 | 7 | 119 |
Mean values of four analyses are indicated, except for Sc, for which the mean of three analyses is shown (Sc data were not obtained in one run). Uncertainties are listed as ±2 standard deviations (σ). Recommended values are from Govindaraju (1994). Fe2O3T is total iron calculated as ferric oxide.
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