Fig. 2From: Voltammetric approach for pharmaceutical samples analysis; simultaneous quantitative determination of resorcinol and hydroquinoneA Cyclic voltammetric curves of 500 µM RC on the surface of ZnFe2O4/NPs/IL/CPE at different pH values of phosphate buffer solution (PBS): 4(a), 5(b), 6(c), 7(d), 8(e), and 9(f). B Peak potential dependence on solution pH for RC oxidation on the surface of ZnFe2O4/NPs/IL/CPEBack to article page