Polarographic determination of some nitro group-containing pesticides

Abstract

The differential pulse polarography technique was applied to the determination of some pesticides containing nitro groups in their molecules. The nitro groups were found to be reduced to hydroxylamines or to the corresponding amines. The effect of medium, particularly of pH of the supporting electrolyte, was examined. The pesticides were determined in concentrations less than 10 μg l-1, which shows primose for the application of the technique to environmental water purity monitoring.

Electrochemical Methods in Pesticides Control

“…[10,11] Within this group of pesticides, there are essentially four groups nitrorganophosphates, nitrophenol derivatives, dinitroaniline derivatives, and nitrorgano-chlorides.…”

The determination of organochlorine compounds by adsorptive stripping voltammetry, part I: p,p′‐DDT and dieldrin

“…A temperature range of 10-50°C was investigated. Between 10 and 25°C the peak current increased linearly with temperature, but it decreased thereafter. An operating temperature of 20°C was chosen for the work.…”

“…An accurately weighed bovine sample (about 1.0 g) was dissolved in a precledned conical flask by adding 2.0 cm3 organic solubilizer and periodically shaking while the mixture was heated on a water bath at 65°C for 35 minutes. Methanol (10 cm3) was added to the transparent brown solution and any finely divided solid was removed by filtration through a Whatman glass microfiber filter. The solution was made up to 25 cm3.…”

Adsorptive stripping square wave voltammetry (Ad-SSWV) accomplished with second-order multivariate calibration

“…ELISA technique has been used to determine 3-MET based on a polyclonal antibody [4]. There are also reported methods in which FEN is determined using voltamperometric techniques [16][17][18][19][20][21].…”