Mercury , coulometric generation

Certain thiols, including methimazole, were determined coulometrically by direct titration with electro-generated Hg" (42). The coulometric assay is carried out in a cell having three compartments separated from each other by sintered-glass discs. One compartment contains the mercury for the electro-... 

Precipitation and Complex-Formation Titrations A variety of coulometric titrations involving anodi-cally generated silver ions have been developed (sec Table 24-1). A cell, such as that shown in Figure 24-9, can be used with a generator electrode constructed from a length of heavy silver wire. End points are detected potentiometrically or with chemical indicators. Similar analyses, based on the generation of mer-cury(l) ion at a mercury anode, have been described. 

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