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| Parameter | Value |
|---|---|
| Analytical wavelength, nm | 412 |
| Linear range, μg L−1 | 16–256 |
| Calibration curve | A = 0.03 + 0.0029 × C (μg L−1) |
| Correlation coefficient | 0.9992 |
| LOD, μg L−1 | 6 |
| LOQ, μg L−1 | 16 |
| RSD, % | 1.3 |
| Enrichment factor | 7 |
