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Comparative Ag + ion detection characteristics of Gd-AIS QDs at Gd mole ratios 16, 20, and 30.
| Material | LOD (ppm) | R2 | Range (ppm) | λ max (nm) |
|---|---|---|---|---|
| Gd16-AIS QDs | 0.88 | 0.9549 | 1–10 | 575 |
| Gd20-AIS QDs | 2.36 | 0.7007 | 1–30 | 547 |
| Gd30-AIS QDs | 1.23 | 0.8351 | 1–30 | 547 |
