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Determination Of Acifluorfen And Fluorodifen In Soils And Grains By Differential Pulse Polarography

T.Raveendranath Babu, N.Y.Sreedhar

The electrochemical behavior of the herbicides acifluorfen and fluorodifen was studied using differential pulse polarography in universal buffers of pH range 2.0 to 12.0. The cathodic peak observed for the herbicides are attributed to the reduction of nitro groups and showed to be pH dependent. Differential pulse polarography at dropping mercury electrode was used to establish an electroanalytical procedure for the determination of the herbicides. Acifluorfen and fluorodifen in formulations, soils and grains. Quantitative measurements were successful in the concentration range of 1.25×10-5 to 2.8×10-9 M, the lower concentration representing the detection limit by differential pulse polarography.