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. 2023 Aug 18;15(16):3450. doi: 10.3390/polym15163450

Figure 1.

Figure 1

Potentiometric pH sensor response of electrodeposited and spin-coated PANI thin films. The output voltage response and the fitted calibration curves for the samples J5T600 and SC1000 are presented in (a). From the calibration curves, the devices’ sensitivity was calculated and presented in (b) for the two sets of PANI film. The linear fit regarding J5T600 (solid black line) does not consider the 7.8 pH once it seems the detection limit of the sensor. On the other hand, the linear fit of SC1000 (red solid line) is from 2.2 to 7.8 pH.