A high frequency oscillator based auto-titrimetric method for redox systems

الملخص EN

An auto-oscillometric technique has been developed for tracing the equivalence points in aqueous redox estimations as a function of titrant volume.

The technique utilizes the current impulses generated in a transistorized circuit oscillating at 110 MHz for the auto-recording of the titration events.

The usefulness and application of the technique is demonstrated by selecting various reduction-oxidation systems in aqueous phase at concentrations ranging between 10'3 to 10-6M.

The overall error is rated at about ± 1.1% with a precision better than ± 1% for replicate measurements on a given redox system.

This technique has the potential of appli-cation for analytical estimations related to compleximetry and permittivity' changes.