Table 6 Determination of methylphenidate using the proposed PVC membrane sensors
From: New potentiometric sensors for methylphenidate detection based on host–guest interaction
Added conc., μg/mL | Sensors 1 | |||
|---|---|---|---|---|
2.69 | 26.9 | 269.7 | 2697.7 | |
Measured | 2.64 | 26.76 | 267.69 | 2695.1 |
R, % | 98.14 | 99.47 | 99.25 | 99.90 |
SD | 0.09 | 0.64 | 4.84 | 56.86 |
RSD, % | 3.41 | 2.39 | 1.81 | 2.11 |
Sensor 2 | ||||
Added Conc., μg/mL | 2.69 | 26.9 | 269.7 | 2697.7 |
Measured | 2.63 | 26.36 | 264.95 | 2663.9 |
R, % | 97.76 | 97.99 | 98.23 | 98.72 |
SD | 0.1 | 0.66 | 5.91 | 52.72 |
RSD, % | 3.80 | 2.51 | 2.23 | 1.96 |
Sensor 3 | ||||
Added conc., μg/mL | 2.69 | 26.9 | 269.7 | 2697.7 |
Measured | 2.64 | 26.36 | 265.17 | 2649.9 |
R, % | 98.14 | 97.99 | 98.51 | 98.21 |
SD | 0.1 | 0.64 | 5.89 | 50.1 |
RSD, % | 3.78 | 2.43 | 2.22 | 1.89 |