80749-14-0Relevant academic research and scientific papers
THE POLAROGRAPHIC AND VOLTAMMETRIC DETERMINATION OF 5-(3-PHENOXYSULPHENYLAZO)-6-HYDROXY-3-CYANO-1,4-DIMETHYL-2-PYRIDONE
Barek, Jiri,Svagrova-Hauserova, Ivana,Zima, Jiri
, p. 2105 - 2119 (2007/10/02)
The polarographic reduction of the title azodye has been studied, a mechanism was proposed and optimal conditions were found for the determination of this substance by TAST polarography in the range 5E-5 - 2E-6 mol l-1 and differential pulse polarography at a dropping mercury electrode in the range 5E-5 - 2E-8 mol l-1.The sensitivity was further increased by adsorptive accumulation of the determined substance on the surface of a hanging mercury drop electrode with linear scan voltammetry (determination limit 5E-10 mol l-1 ).The selectivity was increased by priorseparation of the determined azodye using thin layer chromatography and by transferring the substance adsorbed on the surface of the hanging mercury drop to a new base electrolyte solution.
