Method and apparatus for automatically bestemmelseaf amount of one or more components in a liquid

摘要

A method for automatically determining the amount of one or more substances by stripping voltammetry, said amount ranging from 10-9 to 10-5 mol/l (0.1-1000 microgrammes per liter) according to an automatically repeating programme is carried out continuously, not batch-wise, for a time span of a month or more. An apparatus implementing said method preferably comprises a hanging drop electrode and means to renew the hanging drop at the start of each determination. Pretreatment of a physical and/or chemical nature is carried through continuously outside the stripping range. (FIG. 1).