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. 2018 Oct 25;10(11):1191. doi: 10.3390/polym10111191

Figure 4.

Figure 4

(a) Cyclic voltammetry of 1 mM FcMeOH, with P1-coated glassy carbon (GC/poly (aniline quinone)) as RE in PBS aqueous buffer and PBS/acetonitrile mixture. (b) Multi-cycle stability testing of P1 as RE in PBS aqueous buffer; (c) Potentiometric measurement of P1 as RE under zero-current condition in dichloromethane solution with 0.1 M TBAP electrolyte, fluctuating within a range of 0.02 mV; (d) Cyclic voltammetry of 1 mM FcMeOH, with P1 as RE in PBS with different pH values; (e) Average of anodic and cathodic peak potential vs. pH for 1 mM FcMeOH with P1 as RE in PBS buffer of various pH; (f) Cyclic voltammetry of 1 mM FcMeOH, with P1 as RE in dichloromethane with 0.1 M TBAP electrolyte with oxygen and without oxygen under nitrogen bubbling for ~20 min before measurement and the nitrogen atmosphere was kept above the solution during the testing.