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Figure 7: Cyclic voltammograms of AChE-AuNPs-PAH/SPCE in 0.1 mol/l phosphate buffer (pH 7.0) and 1.0 mmol/l ASCh, in absence (red, dashed line) and presence (blue, solid line) of 1000 nmol/l diuron, at a scan rate of 50 mV/s.