Research Article
Development of Potentiometric Phenol Sensors by Nata de Coco Membrane on Screen-Printed Carbon Electrode
Table 3
Phenol concentration in river water sample and the recovery percentage.
| Solution | Phenol concentration (μM) | Recovery (%) |
| Sample | 1.60 ± 0.04 | — | Sample + 4 μM phenol standard | 5.34 ± 0.04 | 93.50 ± 0.75 | Sample + 8 μM phenol standard | 9.06 ± 0.04 | 93.25 ± 0.44 |
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