Figure 3.
(a) Effects of the amounts of AuNPs on peak potential separation ΔEp, and the (b) amounts of adsorbed water on peak currents of SPE/clay/AuNPs/CS in 0.1 M PBS (pH 9.0) containing 10 mM [Fe(CN)6]3–/4– with 0.1 M KCl; scan rate 50 mV/s.
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