| Element | Parameter (unit) | |||||||||||||
| Repeatability (RSD %) within laboratory reproducibility (RSD %) | Recovery (%) | LOD (mg/kg) | LOQ (mg/kg) | Working range (mg/kg) | Correlation coefficient | Expanded uncertainties (U(%) (k = 2)) | ||||||||
| Spiked level concentration (mg/kg) | ||||||||||||||
| 1.00 | 5.00 | 8.00 | 1.00 | 5.00 | 8.00 | 1.00 | 5.00 | 8.00 | ||||||
| As | 5.3 | 2.2 | 1.8 | 6.1 | 2.8 | 2.5 | 105.7 | 96.4 | 87.6 | 0.052 | 0.054 | 0.05 - 10.00 | 0.9996 | 2.3 |
| Cd | 2.1 | 1.0 | 1.9 | 2.8 | 1.3 | 2.4 | 96.7 | 85.5 | 99.6 | 0.055 | 0.057 | 0.05 - 10.00 | 1.0000 | 1.1 |
| Pb | 3.9 | 2.1 | 1.7 | 4.3 | 2.7 | 1.9 | 90.4 | 93.1 | 92.2 | 0.068 | 0.074 | 0.05 - 10.00 | 0.9997 | 3.0 |
| Cr | 8.6 | 5.8 | 1.8 | 9.9 | 6.7 | 2.2 | 100.5 | 102.6 | 98.4 | 0.066 | 0.070 | 0.05 - 10.00 | 0.9999 | 3.7 |
| Ni | 9.9 | 4.5 | 3.6 | 10.1 | 5.0 | 3.8 | 90.4 | 83.8 | 96.6 | 0.076 | 0.080 | 0.05 - 10.00 | 0.9998 | 3.1 |
| Se | 4.8 | 4.0 | 5.9 | 6.9 | 4.8 | 7.7 | 99.5 | 100.6 | 101.0 | 0.076 | 0.090 | 0.05 - 10.00 | 0.9996 | 4.1 |
| Cu | 1.6 | 2.2 | 2.0 | 3.9 | 2.6 | 2.4 | 110.2 | 95.4 | 98.0 | 0.073 | 0.083 | 0.05 - 10.00 | 0.9997 | 1.4 |
| Mn | 7.2 | 6.7 | 5.0 | 8.8 | 7.4 | 6.3 | 97.5 | 93.2 | 95.7 | 0.065 | 0.075 | 0.05 - 10.00 | 0.9999 | 4.5 |
| Mo | 5.7 | 1.6 | 2.8 | 5.9 | 1.9 | 3.7 | 98.2 | 81.0 | 94.8 | 0.058 | 0.062 | 0.05 - 10.00 | 0.9999 | 2.1 |
| Co | 4.1 | 4.8 | 1.6 | 4.8 | 7.4 | 1.9 | 103.5 | 97.2 | 99.0 | 0.056 | 0.060 | 0.05 - 10.00 | 0.9997 | 3.4 |
| Zn | 5.1 | 3.1 | 4.9 | 5.5 | 3.6 | 5.2 | 100.4 | 94.1 | 94.7 | 0.716 | 0.985 | 0.5 - 10.00 | 0.9997 | 4.8 |
|
| Spiked level concentration (mg/kg) |
|
|
|
|
| ||||||||
|
| 0.125 | 0.625 | 1.00 | 0.125 | 0.625 | 1.00 | 0.125 | 0.625 | 1.00 |
|
|
|
|
|
| Hg | 7.9 | 3.3 | 2.6 | 8.1 | 3.6 | 2.9 | 87.0 | 84.5 | 98.7 | 0.042 | 0.048 | 0.05 - 2.50 | 0.9999 | 2.4 |
|
| 2.5 | 12.5 | 20.0 | 2.5 | 12.5 | 20.0 | 2.5 | 12.5 | 20.0 |
|
|
|
|
|
| Fe | 5.6 | 2.4 | 1.6 | 7.0 | 2.6 | 1.9 | 81.0 | 82.3 | 105.4 | 0.786 | 1.217 | 0.5 - 25.00 | 0.9996 | 6.0 |