NOVEL POTENTIOMETRIC MONITORING COMBINED WITH COULOMETRIC REAGENT GENERATION

A potentiometric monitor incorporating a flow-through analysis channel has been developed based on the standard addition or subtraction prin ciple. Programmed addition of standard or reagent was carried out at a given point of the flow-through system by current-programmed coulomet ry. A computer was used for data acquisition, for electric noise rejec tion, for signal recognition and for calculating the analytical result s. The characteristics of the monitor system have been investigated un der conditions optimised for the chloride determination, and the perfo rmance of it was checked by monitoring the chloride concentration in t ap water.