Table T1. Reproducibility and external reproducibility of the seaFAST2 method.
Standard/Reference
material |
Rare earth element:
|
La
|
Ce
|
Pr
|
Nd
|
Sm
|
Eu
|
Gd
|
Tb
|
Dy
|
Ho
|
Er
|
Tm
|
Yb
|
Lu
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| NBP1097 (N = 18) | Average (pM): | 39.8 | 19.8 | 7.1 | 27.3 | 6.2 | 2.2 | 7.5 | 2.6 | 9.3 | 3.5 | 8.3 | 2.4 | 9.3 | 2.4 |
| 1σ (pM): | 3.2 | 4.0 | 0.4 | 2.1 | 0.7 | 0.2 | 1.7 | 0.1 | 0.4 | 0.1 | 0.4 | 0.05 | 0.5 | 0.1 | |
| RSD (%): | 8 | 20 | 6 | 8 | 11 | 8 | 22 | 4 | 5 | 3 | 5 | 2 | 5 | 3 | |
| PPREE1 (N = 10) | Average (ppm): | 85.9 | 171.5 | 21.5 | 95.1 | 21.9 | 6.5 | 26.2 | 4.4 | 23.8 | 4.9 | 12.7 | 1.9 | 8.9 | 1.3 |
| 1σ (ppm): | 6.4 | 10.7 | 1.2 | 4.7 | 1.4 | 0.3 | 1.9 | 0.6 | 1.8 | 0.7 | 0.4 | 0.7 | 0.6 | 0.1 | |
| Most probable value (ppm)*: | 80.4 | 161.2 | 21.2 | 92.3 | 20.3 | 5.95 | 23.8 | 3.65 | 22.0 | 4.43 | 11.9 | 1.48 | 8.2 | 1.12 | |
| Mean average deviation (ppm)*: | 5.9 | 8 | 1.3 | 5.7 | 1.5 | 0.48 | 1.7 | 0.33 | 0.7 | 0.09 | 0.4 | 0.05 | 0.13 | 0.03 | |
| Detection limit (pM): | 1.52 | 2.73 | 0.28 | 2.60 | 0.18 | 0.08 | 1.30 | 0.06 | 0.60 | 0.12 | 0.12 | 0.02 | 0.06 | 0.02 |
* = from Verplanck et al., 2001. RSD = relative standard deviation.
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