Square Wave Voltammetric Behaviour of N – Benzylidene Aniline and Some of Its Derivatives in Dimethyl Sulphoxide

The square wave voltammetric (SWV) behavior of eight substituted N-benzylidene anilines (I-VIII) C6H5-CH=N-C6H4R Where R=H,p-CH3,m-CH3,p-OCH3,m-OCH3,p-Cl,p-Br,and p-I respectively have been studied in Dimethyl sulphoxide (non aqueous medium) in presence of LiClO4( as supporting electrolyte). All these compounds show a well defined one reduction peak with the exception of p-Br and p-I which show two reduction peaks appeared at potential Ep= -1.854,-1.894, -1.826, -1.916, -1.832 and -1.732 vs. Ag/AgCl,KCl for compounds I-VI, respectively .The peaks obtained are recommended for trace determination of these compounds . Regression analysis on the standard curve for all compounds studied indicate a linear relationship between peak current and concentration over the range 3.8 x 10-6 1.5 x 10-4 M with a correlation coefficient of more than 0.99.