Method for detecting end point of titration

Details Method for detecting end point of titration Method for detecting end point of titration

1984-05-10

1986-04-15

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

422 77, G01N 2742

Patent

active

045825726

ABSTRACT:
An end point of polarization titration is detected by the steps of passing constant DC pulse having a magnitude of 0.1-100 .mu.A between a pair of detection electrodes immersed in a solution to be titrated, detecting a polarization state generated between the detection electrodes at each current passage before the polarization reaches an equilibrium state and judging the end point based on the detected polarization state. The polarization state is detected by integrating a polarization potential generated at each current passage and the polarization is eliminated by short circuiting the detection electrodes before passing the next DC pulse.

REFERENCES:
patent: 3248309 (1966-04-01), Robinson
patent: 3398064 (1968-08-01), Propst
patent: 3563875 (1971-02-01), Coulson
patent: 3593119 (1971-07-01), Brum et al.
patent: 3647668 (1972-03-01), Lindblad et al.
patent: 3879604 (1975-04-01), Malmvig
patent: 3950237 (1976-04-01), Arawa et al.
G. Svehla, "Automatic Potentiometric Titration", 1st Ed., Oxford, New York, 1978.

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