Research Article
Determination of Geographical Origin of Wuchang Rice with the Geographical Indicator by Multielement Analysis
Table 2
Quality control for determining the elements of rice.
| | Calibration range (μg/L) | R2 | LOD (ppb) | LOQ (ppb) |
| Na | 0–4 ppm | 0.9982 | 3.8 | 13.6 | Mg | 0–4 ppm | 0.9986 | 0.9 | 3.0 | Al | 0–40 ppb | 0.9953 | 1.5 | 5.0 | K | 0–4 ppm | 0.9973 | 3.3 | 14.1 | Ca | 0–4 ppm | 0.9992 | 4.6 | 15.3 | V | 0–40 ppb | 0.9986 | 0.01 | 0.03 | Mn | 0–40 ppb | 0.9996 | 1.5 | 5.0 | Fe | 0–40 ppb | 0.9988 | 1.8 | 6.1 | Co | 0–40 ppb | 0.9990 | 0.0015 | 0.0048 | Cu | 0–40 ppb | 0.9994 | 1.2 | 4.0 | Zn | 0–40 ppb | 0.9993 | 1.47 | 4.89 | As | 0–40 ppb | 0.9991 | 0.009 | 0.029 | Rb | 0–40 ppb | 0.9995 | 0.06 | 0.21 | Sr | 0–40 ppb | 0.9997 | 0.08 | 0.26 | Cd | 0–40 ppb | 0.9993 | 0.003 | 0.01 | Pb | 0–40 ppb | 0.9993 | 0.024 | 0.081 |
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