Research Article
pH Sensitivity Estimation in Potentiometric Metal Oxide pH Sensors Using the Principle of Invariance
Figure 9
Total electrode potential ξ against pH for (a) TiO2, Ns: 12.05, εs: 35, (b) Ta2O5, Ns: 10, εs: 25, (c) Ta2O5, Ns: 12, εs: 25, and (d) Al2O3, Ns: 12.04, εs: 10.43. The electrolyte is KCl for all cases.
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(b) |
(c) |
(d) |