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. 2021 Jul 30;26(15):4619. doi: 10.3390/molecules26154619

Figure 11.

Figure 11

(a) Stability responses of Ag-ZnO/GCE (b) Ag-ZnO/GCE electrode response current in 500 µM 4-NP containing 0.1 M PBS (pH = 7) solution. (Accumulation time: 2 min, catalyst loading volume: 10 µL).