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Measured activity concentrations of IAEA-375 reference material and reference values
| Radionuclides | Lab value (Bq kg-1) | IAEA value (Bq kg-1) | Relative bias (%) |
|---|---|---|---|
| 238 U | 18.4 ± 0.71 | 19.8 ± 0.6 | -7% |
| 232Th | 469.2 ± 20.45 | 434.4 ± 18.9 | 8% |
| 40K | 427.6 ± 15.67 | 406.8 ± 16.7 | 5% |
