Fig. 7

CVs of Bi2O3/ MWNT/GCE in 0.1 mM paracetamol at different pH values (0.1 M PBS). Scan rate 100 mV s− 1. Error bar = ± S.D. and n = 3
CVs of Bi2O3/ MWNT/GCE in 0.1 mM paracetamol at different pH values (0.1 M PBS). Scan rate 100 mV s− 1. Error bar = ± S.D. and n = 3