Research Article
Voltammetric Determination of Amoxicillin Using a Reduced Graphite Oxide Nanosheet Electrode
Table 2
Analytical results for the electrochemical determination of amoxicillin (n = 3) using the RGOnS electrode in different water samples.
| | Sample | CAMX (µM) | Recovery (%) | RSD (%) | | Added conc. | Found conc. |
| | Distilled water | 0 | n.d. | — | — | | 5 | 5.10 | 102.0 | 2.5 | | 10 | 10.26 | 102.6 | 3.1 |
| | Tap water | 0 | n.d. | — | — | | 5 | 5.15 | 103.0 | 3.6 | | 10 | 10.15 | 101.5 | 4.0 |
| | West lake water | 0 | n.d. | — | — | | 5 | 5.21 | 104.2 | 3.5 | | 10 | 10.68 | 106.8 | 4.8 |
| | Domestic wastewater | 0 | n.d | — | — | | 5 | 4.72 | 94.36 | 4.7 | | 10 | 10.47 | 104.71 | 4.2 |
| | | Nominal value (mg/capsule) | Found value (mg/capsule) | | | | Drug | 500 | 477 | 95.0 | 3.3 |
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