Volta metric Behavior of Mesotrione using Silver/Amalgam Electrode

Jovic, M.S.; Manojlovic, D.; Stanković, D.; Milić, A.; Sentić, M.; Roglić, G.

doi:10.22059/ijer.2012.595

Volta metric Behavior of Mesotrione using Silver/Amalgam Electrode

Document Type : Original Research Paper

Authors

M.S. Jovic

D. Manojlovic

D. Stanković

A. Milić

M. Sentić

G. Roglić

Faculty of Chemistry, University of Belgrade, Strudentski Trg 12-16, 11158 Belgrade, Serbia

10.22059/ijer.2012.595

Abstract

Volta metric behavior of mesotrione using silver/amalgam electrode we examined in this paper.
Mesotrione belongs to the triketone group of herbicides. It is used against weeds in corn and operates by
inhibition of 4-hydroxyphenyl piruvate in plants. There is little information about mesotrione as its presence
in the market is short. For its wider application in the future, it is important to know details of its chemical
characteristics and redox processes, including biogeochemical transformation and migration after application
to agricultural land, which could contribute to its more efficient and safe application. The technique of cyclic
voltammeter with conventional three-electrode cell and electrochemical workstation was used for the
investigation of electrochemical behavior of mesotrione. Cyclic voltamograms of mesotrione were recorded at
pH values 6, 8, 10 and 12. Several peaks were obtained at certain values of the potential and they were
attributed to the reduction of two carbonyl groups (in position 1 and 3 of cyclohexane ring), the third carbonyl group and nitro group. The maximum current value was at pH 12.

Keywords

Pesticide

Mesotrione

Cyclic Voltammeter

Volta metric behavior

Silver/Amalgam electrode