Mettler-toledo Gmbh

Günter Pfuhl

Félix Bécheiraz

Thomas Blank

A cell and/or a measuring instrument are arranged for coulometric titration. The cell has first and second electrochemical half-cells, each of which is connected into a regulated circuit and each of which has an associated electrode. The second electrode () is immersed in an electrolyte () that is solid or solidified and fills a second housing (). The second housing is closed, with charge and material exchange only possible through a diaphragm () that is disposed between the respective electrochemical half-cells. The electrolyte contains a first redox partner that, along with at least one second redox partner, is part of a redox system. The redox partners are selected to substantially suppress gas development inside the cell during operation. The first electrode and the second housing are disposed in a first housing so that at least the diaphragm and the first electrode are in contact with a sample during operation.

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Schwerzenbach, Switzerland

Günter Pfuhl