Detection results of Cu2+, Cd2+, and Hg2+ in lake water sample at PG/GCE.
| Analytes | Added (μM) | Found (μM) | Recovery (%) |
|---|---|---|---|
| Cu2+ | 0 | — | — |
| 0.3 | 0.299 | 99.7 | |
| 0.5 | 0.501 | 100.2 | |
| Cd2+ | 0 | — | — |
| 0.3 | 0.298 | 99.3 | |
| 0.5 | 0.502 | 100.4 | |
| Hg2+ | 0 | — | — |
| 0.3 | 0.301 | 100.3 | |
| 0.5 | 0.449 | 99.8 |
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