INFLUENCE OF ELECTROCHEMICAL CONDITIONS ON PALLADIUM -N-(5,6-DIMETHOXY-4-PYRIMIDINYL)BENZENESULFONAMIDE (SULFADOXINE) WAVE AT DROPPING MERCURY-ELECTRODE

Several groups have reported on the electrochemical analysis of Pd(II) in various media [1-5]. In connection to the palladium determination in various samples, the effect of -N-(5,6-dimethoxy-4-pyrimidinyl)benz enesulfonamide (sulfadoxine) was not discussed. In many cases, however , the electrode surface can be changed during the drop life, mainly du e to the slow adsorption of trace amounts of surface active contaminan ts in the solution. With sulfadoxine, palladium does not adsorb on the electrode surface and is reduced rapidly. The purpose of the present study is to examine the applicability of this method to determine pall adium in the solutions containing sulfadoxine, and derive a polarograp hic method for determination of Pd(II) in synthetic- and alloy samples .