ELECTRO CHEMICAL REDUCTION BEHAVIOR AND DETERMINATION OF AZOMETHINE GROUP CONTAINING HERBICIDES AT CARBON NANO TUBES PASTE ELECTRODE

In the present work, agriculturally important azomethine group containing herbicides Fenclorim, Isoxadifen, Fenchlorazole, was chosen to get clear information on the reduction groups present in their nuclei and electrode kinetics was studied by employing electrochemical techniques such as cyclic voltammetry, differential pulse adsorptive stripping voltammetry at carbon nano tubes paste electrode. Adsorptive stripping voltammetry method has been used for quantification of these herbicides in grains and water samples. Universal buffer with pH range2.0-6.0 was used as supporting electrolyte. The peak heights are in linear trend over the concentration range of 10-11 to 10-5 M. The relative standard deviation and correlation coefficient for the compounds was 0.97, 0.95, 0.98% and 0.978, 0.986, 0.988 respectively. The lower detection limit for the compounds under investigation was 1.03 x 10-9M.