An apparatus for automatic quantitative analysis of electrolytes by controlled potential coulometry

An electronic instrument is described which is interesting as an application of the direct application of an electronic servo type system to chemical analysis. An outline of the basic physical chemical principles and of the circuits of the all-transistor control system is given, with a description of a special output circuit to control the smallest overshoot on switch-on of the electrolysis current. Consideration is given to the problems of preventing oscillations in such a system.