Poly-ACBK/MWNTs/GC SELECTIVE DETERMINATION OF CATECHOL WITH THE COEXISTING OF ISOMERS OF DIHYDROXYBENZENE

A novel modified electrode was fabricated by electropolymerized of acid chrome blue K at the multi-walled carbon nanotubes modified glassy carbon electrode.The constructed electrode showed excellent reproducibility and stability.The electrode developed was used to selective determination of catechol with the coexisting of the isomers in environmental samples.There was a linear relationship at the range 1×10-6 ~1×10-4 mol L-1 of catechol with the anodic peak currents and the detection limits was estimated to be 1×10-7 mol L-1.Actual water sample was analysed and satisfactory result was obtained.