Table 2.
Accuracy, precision, and repeatability for analysis of Seronorm whole blood samples.
| Element | MDLs | Sero L1 (lot 1406263) | Sero L2 (lot 1406264) | Sero L3 (lot 1509408) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Concentrations | Deviation | CVs (%) | Concentrations | Deviation | CVs (%) | Concentrations | Deviation | CVs (%) | |||||||||||
| Target | Range | Measured | (%) | Intraday | Interday | Target | Range | Measured | (%) | Intraday | Interday | Target | Range | Measured | (%) | Intraday | Interday | ||
| Be | 0.141 | <0.02 | <0.141 | 5.17 | 4.13–6.22 | 4.87 | −5.8 | 5.3 | 5.3 | 10.1 | 8.10–12.2 | 10.2 | 0.7 | 4.0 | 5.4 | ||||
| V | 0.217 | 0.970 | 0.580–1.35 | 1.10 | 14 | 6.8 | 15 | 4.98 | 3.98–5.98 | 4.58 | −8.0 | 1.9 | 5.3 | 4.40 | 3.50–5.30 | 4.52 | 2.8 | 5.1 | 5.2 |
| Co | 0.001 | 0.200 | 0.120–0.280 | 0.188 | −6.2 | 5.3 | 10 | 5.18 | 4.13–6.22 | 5.42 | 4.6 | 1.8 | 2.1 | 10.3 | 8.30–12.4 | 10.9 | 5.8 | 0.9 | 1.7 |
| Ni | 0.057 | 1.38 | 1.10–1.66 | 1.59 | 25 | 6.4 | 19 | 15.9 | 12.7–19.1 | 15.2 | −4.5 | 0.8 | 2.0 | 11.0 | 8.80–13.3 | 11.2 | 1.9 | 1.0 | 2.6 |
| Se | 0.503 | 60.0 | 48.0–72.0 | 60.1 | 0.1 | 1.8 | 6.5 | 161 | 128–193 | 164 | 1.8 | 1.5 | 3.6 | 198 | 158–238 | 225 | 13 | 1.8 | 3.3 |
| Sn | 0.112 | 0.180 | 0.150–0.220 | 0.164 | −9.0 | 12 | 19 | 5.24 | 4.19–6.30 | 4.93 | −5.9 | 1.8 | 3.8 | 9.90 | 7.90–11.9 | 10.8 | 8.8 | 1.7 | 3.4 |
| I | 0.193 | 28.6 | 22.8–34.3 | 30.0 | 4.7 | 2.7 | 8.5 | 107 | 86.0–129 | 126 | 18 | 2.3 | 3.7 | 165 | 132–199 | 253 | 53 | 0.9 | 2.2 |
| B | 3.91 | 180 | appr | 170 | −5.4 | 4.1 | 11 | 158 | appr | 164 | 3.6 | 5.0 | 20 | 379 | appr | 470 | 24 | 4.2 | 14 |
| Al | 7.08 | 11.6 | 5.80–17.5 | 10.5 | −9.2 | 21 | 37 | 68.9 | 55.0–82.7 | 60.3 | −12 | 5.6 | 19 | 88.0 | 70.0–106 | 78.2 | −11 | 2.9 | 17 |
| Cr | 0.163 | 0.450 | 0.270–0.630 | 0.675 | 50 | 6.0 | 22 | 10.7 | 8.50–12.8 | 9.73 | −9.0 | 1.7 | 2.3 | 35.5 | 28.4–42.6 | 33.7 | −5.2 | 1.1 | 1.6 |
| Mn | 0.060 | 18.4 | 14.7–22.1 | 20.2 | 10 | 2.4 | 4.6 | 31.4 | 25.1–37.7 | 30.6 | −2.6 | 1.4 | 2.6 | 33.3 | 26.6–39.9 | 33.8 | 1.5 | 2.0 | 2.4 |
| Cu ∗ | 0.048 | 0.640 | 0.500–0.760 | 0.653 | 2.0 | 2.4 | 5.6 | 1.34 | 0.270–1.60 | 1.33 | −0.5 | 1.1 | 1.8 | 2.08 | 1.66–2.50 | 2.31 | 11 | 0.5 | 1.2 |
| Zn ∗ | 0.001 | 4.30 | 3.40–5.20 | 4.59 | 6.8 | 0.9 | 4.8 | 7.10 | 5.70–8.50 | 8.06 | 14 | 0.4 | 2.4 | 8.06 | 6.44–9.68 | 9.15 | 13 | 0.5 | 2.2 |
| As | 0.047 | 2.40 | 1.90–2.90 | 2.02 | −16 | 8.0 | 9.6 | 14.1 | 11.3–17.0 | 12.0 | −15 | 2.9 | 4.0 | 27.3 | 21.8–32.7 | 25.0 | −8.5 | 1.8 | 3.9 |
| Sr | 0.105 | 37.0 | appr | 39.0 | 5.4 | 0.9 | 8.6 | 36.0 | appr | 39.4 | 9.5 | 2.9 | 7.5 | 37.0 | appr | 46.0 | 24 | 2.2 | 7.0 |
| Zr | 0.027 | 0.320 | appr | 0.337 | 5.2 | 7.4 | 11 | 0.330 | appr | 0.364 | 10 | 5.8 | 9.6 | 0.280 | appr | 0.417 | 49 | 7.3 | 7.8 |
| Mo | 0.030 | 0.510 | 0.410–0.610 | 0.542 | 6.2 | 4.8 | 15 | 5.31 | 4.24–6.37 | 5.53 | 4.2 | 2.7 | 11 | 6.20 | 4.90–7.40 | 7.42 | 20 | 2.7 | 11 |
| Ag | 0.009 | 0.075 | appr | 0.123 | 64 | 32 | 38 | 0.073 | appr | 0.133 | 83 | 24 | 28 | 0.078 | appr | 0.187 | 140 | 16 | 19 |
| Cd | 0.022 | 0.280 | 0.170–0.400 | 0.286 | 2.3 | 24 | 35 | 5.01 | 4.00–6.02 | 5.42 | 8.1 | 4.1 | 5.7 | 9.90 | 7.90–11.9 | 11.1 | 12 | 5.3 | 5.6 |
| Sb | 0.035 | 1.33 | 1.06–1.60 | 1.23 | −7.9 | 6.9 | 15 | 25.9 | 20.7–31.1 | 24.2 | −6.6 | 1.9 | 6.6 | 21.9 | 17.5–26.3 | 21.5 | −1.7 | 2.8 | 5.5 |
| Te | 0.337 | <0.005 | <0.337 | <0.005 | <0.337 | <0.005 | <0.337 | ||||||||||||
| Ba | 0.224 | 457 | appr | 368 | −20 | 1.2 | 20 | 477 | appr | 372 | −22 | 0.6 | 19 | 557 | appr | 559 | 0.3 | 0.5 | 15 |
| Ce | 0.010 | 0.088 | appr | 0.101 | 14 | 6.9 | 19 | 0.086 | appr | 0.108 | 25 | 7.3 | 16 | 0.093 | appr | 0.129 | 39 | 10 | 9.6 |
| W | 0.017 | 0.060 | appr | 0.065 | 8.3 | 13 | 13 | 0.047 | appr | 0.068 | 46 | 14 | 15 | 0.141 | appr | 0.246 | 75 | 3.9 | 11 |
| Pt | 0.003 | 0.005 | appr | 0.006 | 15 | 23 | 58 | 0.005 | appr | 0.007 | 26 | 59 | 73 | 0.006 | appr | 0.009 | 48 | 14 | 52 |
| Tl | 0.027 | 0.007 | 0.003–0.01 | <0.027 | 10.2 | 8.10–12.2 | 12.1 | 19 | 1.1 | 1.8 | 25.2 | 20.1–30.2 | 33.1 | 31 | 0.6 | 1.1 | |||
| Hg | 0.004 | 1.48 | 1.18–1.77 | 1.59 | 7.15 | 1.6 | 15 | 17.0 | 13.6–20.4 | 19.1 | 12 | 0.4 | 12 | 22.4 | 17.9–26.9 | 28.3 | 26 | 0.8 | 13 |
| Pb | 0.097 | 9.90 | 7.90–11.9 | 11.6 | 16.8 | 0.4 | 3.0 | 337 | 269–405 | 354 | 5.0 | 0.3 | 1.3 | 362 | 289–434 | 418 | 15 | 0.5 | 1.2 |
| Bi | 0.029 | <0.005 | <0.029 | 5.00 | 3.99–6.00 | 5.81 | 16 | 1.3 | 2.1 | 39.6 | 31.6–47.6 | 52.5 | 33 | 0.9 | 1.6 | ||||
| Th | 0.010 | 0.009 | appr | <0.010 | 0.009 | appr | <0.010 | 0.010 | appr | <0.029 | |||||||||
| U | 0.006 | 0.180 | appr | 0.163 | −10 | 3.9 | 6.9 | 0.180 | appr | 0.173 | −3.7 | 2.0 | 4.4 | 0.120 | appr | 0.146 | 22 | 3.9 | 5.5 |
Intraday variation coefficients (CVs) (N = 6); interday CVs L-1 and L-2 (N = 6 + 5 + 6 + 7) and L3 (N = 6 + 6 + 7). Method detection limits based on blank samples (N = 21). Concentrations in µg/L; ∗concentrations in mg/L; appr: approximately concentration. With bold text for single elements and bold numbers for interday CVs.