J. Skopalova et M. Kotoucek, POLAROGRAPHIC-BEHAVIOR OF SOME S-TRIAZIUE HERBICIDES AND THEIR DETERMINATION BY ADSORPTIVE STRIPPING VOLTAMMETRY AT THE HANGING MERCURY DROP ELECTRODE, Fresenius' journal of analytical chemistry, 351(7), 1995, pp. 650-655
The electrochemical behaviour of six triazine herbicides (atrazine, te
rbutylazine, desmetryne, prometryne, terbutryne and methoprotryne) was
studied by fast scan differential pulse voltammetry (FSDPV) at a stat
ic mercury drop electrode and by constant potential coulometry. The ad
sorption of these compounds at the mercury electrode was employed for
their determination by adsorptive stripping voltammetry (AdSV) in Brit
ton-Robinson buffers. The detection limits calculated from regression
analyses ranged between 0.1 and 0.9 mu g/l. Preconcentration (solid ph
ase extraction on a C18 column) was used for the determination of very
low contents in water samples. The recovery was 97-99.6%.