Study on electrochemical analysis of maquinox in drug

Cyclic voltammetry,differential-pulse stripping voltammetry,and square wave voltammetry were used to investigate the electrochemical behavior of maquinox at a glassy carbon electrode and a new method for detection of maquinox was established.The maquinox showed a sensitive reductive peak at-0.8 5V(vs.SCE)using cyclic voltammetry in a B-R solution.The impact of buffer solution,pH,accumulation time and scan rate were discussed.The peak current was linear to the concentration of maquinox ranging from 2.0×10-6 mol/L-2.0×10-3 mol/L with a detection limit of 5.0×10-8 mol/L by DPV,and ranging from 2.0×10-6 mol/L-1.0×10-3 mol/L with a detection limit of 2.0×10-8 mol/L by SWV.The determination of maquinox has been performed and the possible mechanism for the electrode process was also proposed.