Fig. 5From: Multiwalled carbon nanotubes decorated with bismuth (III) oxide for electrochemical detection of an antipyretic and analgesic drug paracetamol in biological samplesCurrent responses of the B2O3/MWCNT/GCE sensor from a loading variable ratios of B2O3 to MWCNT. b Different concentrations of B2O3/MWCNT towards 0.1 mM paracetamol oxidation in 0.1 M PBS (pH 4.0). Inset is the current responses of B2O3/MWCNT composite volumes injected on the GCE; error bar = ± S.D. and n = 3Back to article page