sample | At 7 | At 11 | At 13 | Average |
La | 91 | 17 | 47 | 51.7 |
Ce | 129.2 | 57.9 | 87.5 | 91.5 |
Pr | 20.6 | 10.5 | 10.9 | 14 |
Nd | 75.3 | 25.8 | 27.9 | 43 |