4. Conclusion
The electrochemical behavior of nitroxynil was studied in
buffered solutions at the mercury electrode surface using dc-
polarography, cyclic voltammetry and controlled-potential elec-
trolysis. Dc-polarography, differential-pulse stripping voltam-
metry, and square-wave stripping voltammetry procedures were
optimized and successfully applied for quantification of nitrox-
ynil in bulk form and its pharmaceutical formulation.