Fig. 2From: Simultaneous electrochemical sensing of dihydroxy benzene isomers at cost-effective allura red polymeric film modified glassy carbon electrodeCVs of 40.0 μM HQ at bare GCE (curve a) and ALR/GCE (curve b) in 0.2 M buffer of pH 7.4 with 0.05 Vs−1 scan rateBack to article page