Research Article
High-Accuracy Determination of Potassium and Selenium in Human Serum by Two-Step Isotope Dilution ICPMS
Table 4
The data obtained from RELA 2018.
| Lab code | A | e.u.A | B | e.u.B | Method |
| 3 | 4.942 | 0.08 | 2.776 | 0.043 | ICP-OES | 24 | 4.9 | 0.05 | 2.8 | 0.04 | FES | 27 | 5.002 | 0.05 | 2.817 | 0.028 | ICP-ID/SFMS | 39 | 4.96 | 0.083 | 2.8 | 0.065 | FES | 51 | 4.96 | 0.038 | 2.788 | 0.028 | ICPMS | 54 | 4.995 | 0.044 | 2.812 | 0.028 | ICPMS | 63 | 4.95 | 0.05 | 2.78 | 0.03 | FAAS | 87 | 4.998 | 0.028 | 2.813 | 0.021 | Ion chromatography | 115 | 4.948 | 0.04 | 2.785 | 0.03 | ID/ICPMS |
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