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Real sample analysis results (N = 5) of the determination of Zn(II) in water samples using the proposed electrode (HDPBA‒MWCNTs/CPE) and AAS method.
| Sample | Added (μM) | Found (μM) (proposed electrode) |
Recovery (%) | Found (μM) (AAS method) |
Recovery (%) |
|---|---|---|---|---|---|
| Wastewater | 0 | 0.342 (±0.014) | – | 0.355 (±0.015) | – |
| 0.200 | 0.539 (±0.016) | 98.50 | 0.549 (±0.020) | 97.00 | |
| Tap water | 0 | ND | – | ND | – |
| 0.200 | 0.212 (±0.011) | 106.0 | 0.209 (±0.013) | 104.5 |
ND: not detected.
