Electrochemical reduction behaviour of valone and determination of its residues in water samples

Author(s): T.Raveendranath Babu, K.Sivasankar, P.Sujana

The present work describes the electrochemical behaviour of valone the carbonyl group containing pesticide and its remains in water samples. Differential pulse polarographic method were used to study the reduction behaviour of valone. Dropping mercury electrode was used as working electrode and universal buffer with pH range2to6 as supporting electrolyte. Reductionmechanismevoluted by cyclic voltammetry. The optimumpH to get well defined peak for the detection is found to be 4.0. The peak current is found to vary linearly with the concentration of the pesticide over the range 1.0 x 10-3Mto 1.0 x 10-5M. The lower detection was limit found to be 1.0 x 10-5M.

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