Unit | Certified value | Analysed value | Recovery value (%) | |
Li | ug・g−1 | 18 | 19.406 | 108 |
Al | % | 2.297 ± 0.018 | 2.307 | 100 |
Cr | ug・g−1 | 40.9 ± 1.9 | 41.584 | 102 |
Mn | ug・g−1 | 234.5 ± 2.8 | 194.059 | 83 |
Cu | ug・g−1 | 10.01 ± 0.34 | 9.703 | 97 |
Zn | ug・g−1 | 48.9 ± 1.6 | 48.515 | 99 |
Cd | ug・g−1 | 0.148 ± 0.007 | 0.139 | 94 |
Pb | ug・g−1 | 11.7 ± 1.2 | 11.980 | 102 |