| Code | Sn Mass fraction(ng/g) | Sb Mass fraction(ng/g) | Ba Mass fraction(ng/g) | |||
|---|---|---|---|---|---|---|
| Value | Uncertainty(ng/g) | Value | Uncertainty(ng/g) | Value | Uncertainty(ng/g) | |
| GBW02802 | 1.00 | 0.12 | 1.04 | 0.11 | 1.05 | 0.15 |
| GBW02803 | 2.00 | 0.12 | 2.05 | 0.17 | 2.01 | 0.13 |
| GBW02804 | 4.07 | 0.31 | 4.01 | 0.27 | 4.06 | 0.23 |
| GBW02805 | 8.01 | 0.47 | 8.15 | 0.62 | 7.92 | 0.53 |
