(A) Cyclic voltammograms of 11 mg L−1 linuron in pH 5.5 BR buffer, recorded using a CPE, before (curve 1) and after (curve 2) electrochemical activation. (B) Variation
of current peak vs. pH for voltammograms of 9.36 mg L−1 linuron, recorded using an electrochemically activated CPE. Experimental conditions: Eacc = 1.3 V; tacc = 60 s; scan
rate = 0.1 V s−1.