The "presodium" catalysis of electroreduction of hydrogen ions on mercury electrodes by metallothionein. An investigation by constant current derivative stripping chronopotentiometry

Metallothionein (MT) yields on mercury electrodes a "presodium" catalysis o f the evolution of hydrogen, which is, as a peak-shaped signal, particularl y well measurable in chronopotentiometry, and which is, unlike presodium ca talytic effects of other biopolymers, strongly dependent on the presence of cobalt ions in the solution. The behavior of the "presodium" derivative ch ronopotentiometric peak under various experimental conditions was tested.