GBW07155-钽矿石成分分析标准物质
【规格】100克/瓶
【说明】
【保存条件】阴凉干燥处密封保存
【使用注意事项】用前应取出少量标准物质在105℃干燥一小时，置干燥器中冷至室温后备用，最小取样量Ta为0.3克，Nb为0.5克
【特征形态】固态
【基体】矿石
【主要分析方法】X-射线荧光光谱法
| 组分 | 标准值 | 标准偏差 | 单位 |
| ∑REXOY | 45.0▲ | 41.5～47.5 | (10-2) |
| Al2O3 | 14.25 | 0.17 | (10-2) |
| BeO | 0.033*▲ | 0.032～0.039* | (10-2) |
| CaO | 0.105 | 0.013 | (10-2) |
| CO2 | 16.5 | 1.4 | (10-2) |
| Cs2O | 0.066* | 0.006* | (10-2) |
| Dy2O3 | 1.1▲ | 1.0～1.2 | (10-2) |
| Er2O3 | 0.56 | 0.05 | (10-2) |
| Eu2O3 | 0.18 | 0.02 | (10-2) |
| F- | 1.33 | 0.07 | (10-2) |
| Fe2O3(T) | 0.377 | 0.027 | (10-2) |
| FeO | (0.026) | (10-2) | |
| Gd2O3 | 1.2▲ | 1.1～1.3 | (10-2) |
| H2O+ | 1.52 | 0.10 | (10-2) |
| Ho2O3 | 0.22 | 0.04 | (10-2) |
| K2O | 2.01 | 0.08 | (10-2) |
| L.O.I. | 2.21 | 0.12 | (10-2) |
| La2O5 | 6.9 | 0.6 | (10-2) |
| Li2O | 0.779* | 0.046* | (10-2) |
| Lu2O3 | 0.15 | 0.03 | (10-2) |
| MgO | 0.048 | 0.007 | (10-2) |
| MnO | 0.144 | 0.005 | (10-2) |
| Na2O | 3.68 | 0.08 | (10-2) |
| Nb2O5 | 0.043* | 0.003* | (10-2) |
| Nd2O3 | 6.4 | 0.6 | (10-2) |
| P2O5 | 0.348 | 0.011 | (10-2) |
| Pr6O11 | 2.2 | 0.1 | (10-2) |
| Rb2O | 0.241* | 0.019* | (10-2) |
| Sc2O3 | 6.1 | 0.5 | (10-2) |
| SiO2 | 74.98 | 0.34 | (10-2) |
| Sm2O3 | 1.4 | 0.2 | (10-2) |
| Sn | (63) | (10-2) | |
| Ta2O5 | 0.070* | 0.006* | (10-2) |
| Tb4O7 | 0.22 | 0.04 | (10-2) |
| TiO2 | 0.032 | 0.002 | (10-2) |
| Tm2O3 | 0.11 | 0.02 | (10-2) |
| W | 0.020* | 0.002* | (10-2) |
| Y2O3 | 5.3 | 0.7 | (10-2) |
| Yb2O3 | 0.93 | 0.13 | (10-2) |
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