Abstract
The application of differential pulse polarography to the important class of electrode processes involving mercury compound formation has been investigated. For all species studied (chloride, bromide, iodide, sulphide and sodium diethyldithiocarbamate) the differential pulse technique was significantly more sensitive than direct current polarography. However, neither technique was suitable for quantitative trace determination of chloride. The effect of pulse amplitude on peak height, peak half-width, and peak potential was also investigated. The results emphasised the importance of pulse amplitude as an experimental variable in analytical applications of differential pulse technique.
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