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Analytical figures of merit for the quantitative SERS detection of APT residues collected from apple peels (The concentration converted from mass-to-area ratio to mg per kilogram, was roughly calculated according to previous work [32]).
| Fruit Peels | LOD | LOQ |
|---|---|---|
| Apple | 1 × 10−3 ng/cm2 | 0.625 ng/cm2 |
