GBW07154-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 | 18.6 | 1.9 | (10-2) |
| Al2O3 | 14.28 | 0.19 | (10-2) |
| BeO | 0.033* | 0.002* | (10-2) |
| CaO | 0.107 | 0.010 | (10-2) |
| CeO2 | 3.6 | 0.4 | (10-2) |
| Cs2O | 0.064* | 0.003* | (10-2) |
| Dy2O3 | 0.65 | 0.06 | (10-2) |
| Er2O3 | 0.27 | 0.05 | (10-2) |
| Eu2O3 | 0.16▲ | 0.15～0.20 | (10-2) |
| F- | 1.32 | 0.06 | (10-2) |
| Fe2O3(T) | 0.324 | 0.021 | (10-2) |
| FeO | (0.019) | (10-2) | |
| Gd2O3 | 0.84 | 0.13 | (10-2) |
| H2O+ | 1.52 | 0.11 | (10-2) |
| Ho2O3 | 0.13 | 0.04 | (10-2) |
| K2O | 2.04 | 0.06 | (10-2) |
| L.O.I. | 2.21 | 0.13 | (10-2) |
| La2O5 | 3.3 | 0.6 | (10-2) |
| Li2O | 0.790* | 0.024* | (10-2) |
| Lu2O3 | 0.028▲ | 0.025～0.043 | (10-2) |
| MgO | 0.050 | 0.006 | (10-2) |
| MnO | 0.115 | 0.010 | (10-2) |
| Na2O | 3.62 | 0.08 | (10-2) |
| Nb2O5 | 42.3 | 2.5 | (10-2) |
| Nd2O3 | 3.4 | 0.5 | (10-2) |
| P2O5 | 0.347 | 0.025 | (10-2) |
| Pr6O11 | 0.86 | 0.16 | (10-2) |
| Rb2O | 0.244* | 0.009* | (10-2) |
| Sc2O3 | 0.64 | 0.08 | (10-2) |
| SiO2 | 75.06 | 0.51 | (10-2) |
| Sm2O3 | 0.77 | 0.15 | (10-2) |
| Sn | (52) | (10-2) | |
| Ta2O5 | 88.6 | 6.0 | (10-2) |
| Tb4O7 | 0.14▲ | 0.13～0.17 | (10-2) |
| TiO2 | 0.027 | 0.002 | (10-2) |
| Tm2O3 | 0.040 | 0.008 | (10-2) |
| W | 16.4 | 1.2 | (10-2) |
| Y2O3 | 3.7 | 0.7 | (10-2) |
| Yb2O3 | 0.24 | 0.07 | (10-2) |
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