Department of Chemistry. S. V. University. Tirupati-517 502, India E-mail : sreedhar_ny2001 @yahoo.com Fax : 91-08574-48499 Manuscript recevied 16 January 2001, revised 3 May 2002. accepted 12 July 2002 A differential pulse polarographic method for the determination or chlorophacinone at low concentration is developed in agricultural formulations and cereal grains. Well-defined wave/peak is obtained for chlorophacinone in the pH range 2.0-6.0 using universal buffer systems. This is attributed to the facile simultaneous reduction of three carbonyl groups in six-electron reduction process at DME. In addition, dissipation and persistence studies arc also made for chlorophacinone on cauliflower.