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. 2023 Jun 5;39(9):1445–1454. doi: 10.1007/s44211-023-00359-9

Fig. 4.

Fig. 4

a CV curves of Nano-Fe3O4/MoS2/Nafion/GCE for different periods in 0.1 M HNO3. b CV curves of Nano-Fe3O4/MoS2/Nafion/GCE at different concentrations of Cd2+