Table 2.
Accuracy of the ICP-MS method and details of the concentration of trace elements in each material (coefficient of variation and recovery)
| Measurand | Specimen | Assigned value | Range | Mean | CV (%) | Recovery (%) |
|---|---|---|---|---|---|---|
| Plasma Mg (mM) | ClinCheck 1 | 0.64 | 0.58–0.71 | 0.62 | 1.8 | 97.6 |
| ClinCheck 2 | 1.21 | 1.09–1.33 | 1.17 | 1.5 | 96.4 | |
| Plasma Cu (μM) | Seronorm1 | 17.1 | 15.7–18.7 | 17.0 | 1.8 | 99.6 |
| ClinCheck 1 | 10.9 | 8.7–13.1 | 10.7 | 1.3 | 97.8 | |
| ClinCheck 2 | 19.1 | 15.4–23.0 | 19.0 | 1.4 | 98.8 | |
| Plasma Zn (μM) | Seronorm1 | 16.8 | 14.6–19.0 | 17.8 | 3.0 | 107 |
| ClinCheck 1 | 17.7 | 14.2–21.3 | 17.6 | 0.8 | 99.2 | |
| ClinCheck 2 | 23.2 | 18.8–28.3 | 24.2 | 1.3 | 104.2 | |
| Plasma Se (μM) | Seronorm1 | 1.10 | 0.96–1.25 | 1.09 | 0.8 | 98.8 |
| ClinCheck 1 | 1.03 | 0.82–1.24 | 1.06 | 0.7 | 103 | |
| ClinCheck 2 | 1.52 | 1.22–1.82 | 1.57 | 1.2 | 104 |