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Quantification of Cu2+ in spiked samples using R-CD fluorescent sensor technology.
| Samples | Adding concentration (10–7/mol⋅L–1) | Measurement (10–7/mol⋅L–1) | RSD (%) | Recovery (%) |
| 1 | 22 | 22.03 ± 0.11 | 0.50 | 100.14 |
| 2 | 25 | 24.87 ± 0.06 | 0.24 | 99.48 |
| 3 | 36 | 35.57 ± 0.10 | 0.28 | 98.81 |
