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Performance of REFETs with PVC membranes with different contents of DNP.
| DNP/PVC + DNP | Drift (mV/h) | Sensitivity (mV/pH) | Linearity (%) |
|---|---|---|---|
| 50 wt. % | −0.70 | Unstable | w/o |
| 60 wt. % | −0.74 | 10.4 ± 2.2 | 99.7 ± 0.3 |
| 70 wt. % | −1.05 | 9.2 ± 1.2 | 97.6 ± 1.3 |
| 80 wt. % | −0.21 | 35.0 ± 2.9 | 97.4 ± 1.1 |
