Collect. Czech. Chem. Commun. 1992, 57, 1230-1236

The Polarographic and Voltammetric Determination of 1(4'-Carbamoylphenyl)-3,3-dimethyltriazene

Jiří Bareka, Viktor Mejstříkb, Saafa Toubarc and Jiří Zimaa

a UNESCO Laboratory of Environmental Electrochemistry, Department of Analytical Chemistry, Charles University, 128 40 Prague 2, Czechoslovakia
b Toxicological Department, Research Institute for Organic Synthesis, 533 51 Pardubice-Rybitví, Czechoslovakia
c Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Egypt


A study was made of the polarographic behaviour of 1-(4'-carbamoylphenyl)-3,3-dimethyltriazene and optimum conditions were found for its determination by tast polarography and differential pulse polarography at a static mercury drop electrode and by fast scan differential pulse voltammetry at a hanging mercury drop electrode in the concentration range 1 . 10-4 to 2 . 10-7 mol l-1. A further increase in the sensitivity can be achieved through adsorptive accumulation of the test substance on the surface of a hanging mercury drop, permitting the determination to be extended to the concentration range 1 . 10-7 - 2 . 10-9 mol l-1.