Table 1 Results of analytical quality control. Results (Mean; standard deviation, SD; coefficient of variation, CV%; and number, n) of repeated analyses of total mercury (THg) and inorganic mercury (IHg) in reference materials analyzed together with collected samples of whole blood, red blood cells (RBC), plasma, urine (μg/L) and hair (mg/kg).
From: Inter-individual variations of human mercury exposure biomarkers: a cross-sectional assessment
Media | Reference material | THg | IHg |
|---|---|---|---|
Mean (SD) | Mean (SD) | ||
CV% (n) | CV% (n) | ||
Blood/RBC | Seronorm 404107X | ||
Rec. value THg: 3 μg/L | 2.3 (0.18) | 0.54 (0.051) | |
Range: 2.2–3.3 μg/L | 8.1 (7) | 9.4 (7) | |
Seronorm 404108 | |||
Rec. value THg: 8 μg/L | 8.1 (0.52) | 6.4 (0.32) | |
Range: 6.7–8.4 μg/L | 6.3 (7) | 5.0 (7) | |
Plasma | Seronorm 201405 | ||
Rec. value THg: 0.96 μg/L | 1.0 (0.081) | 0.70 (0.017) | |
Range: 0.87–1.06 μg/L | 8.0 (5) | 2.4 (5) | |
Urine | Seronorm 2524 | ||
Rec. value THg: 0.21 μg/L | 0.20 (0.0068) | 0.11 (0.011) | |
95% CI: 0.17–0.25 μg/L | 3.4 (4) | 10 (4) | |
Seronorm 2525 | |||
Rec. value THg: 40.3 μg/L | 38 (1.9) | 38 (0.85) | |
95% CI: 37.7–42.9 μg/L | 5.0 (6) | 2.2 (6) | |
Hair | IAEA086 | ||
Rec. value THg: 0.573 mg/kg | 0.58 (0.028) | 0.27 (0.022) | |
95% CI: 0.534–0.612 | 4.8 (5) | 8.1 (5) | |
IMM-hair 1 | |||
Rec. value THg: 4.8 mg/kg | 4.7 (0.14) | 0.50 (0.026) | |
SD: 0.3 mg/kg | 3.0 (5) | 5.1 (5) |