Table 4. δGe Isotope Ratio Values of Two NIST SRM 3120a Batch Solutions Measured with Different Methods Regarding LOT 000411 (n – Number of Replicates).
| isotope ratio |
||||||||
|---|---|---|---|---|---|---|---|---|
|
74Ge/70Ge |
74Ge/72Ge |
74Ge/73Ge |
||||||
| NIST 3120a batch | procedure | δ, ‰ | 2SD | δ, ‰ | 2SD | δ, ‰ | 2SD | n |
| 000411 | 2a | 0.00 | 0.04 | 0.00 | 0.02 | 0.00 | 0.02 | 4 |
| 151115 | 2a | –0.33 | 0.05 | –0.16 | 0.03 | –0.07 | 0.03 | 6 |
| 000411 | 3a | 0.00 | 0.07 | 0.00 | 0.04 | 0.00 | 0.05 | 4 |
| 151115 | 3a | –0.25 | 0.09 | –0.12 | 0.05 | –0.05 | 0.04 | 6 |
| 000411 | 1b | –0.01 | 0.09 | 0.00 | 0.09 | –0.02 | 0.15 | 9 |
| 151115 | 1b | –0.34 | 0.06 | –0.17 | 0.05 | –0.08 | 0.04 | 8 |
a
Desolvation nebulizer.
b
Hydride generation system.