Process and apparatus for the voltammetric measurement of the qu

Details Process and apparatus for the voltammetric measurement of the qu Process and apparatus for the voltammetric measurement of the qu

1976-04-15

1978-01-03

Serwin, R.E.

Chemistry: physical processes

Physical processes

Crystallization

23253R, 73 611C, 324 71R, 204 1T, 204195R, G01N 2726, G01N 2730, G01N 3108

Patent

active

040664066

ABSTRACT:
A process and apparatus for the voltammetric measurement of sample component quantities is disclosed wherein the material to be measured is passed by means of a pulsating-delivery pump into a voltammetric cell by way of a flow cross-section restriction to the surface of the voltammetric electrode, the liquid jet being adjusted such that its cross-section in the vicinity of the measuring surface of the electrode should be greater than the measurement area of the latter. The obtained voltammetric current curve is integrated at the area below the peak value, the current changing as a function of the pulsating flow rate of the liquid and the material quantities are determined from the integrated data. Preferably, the integration is effected from a value corresponding to 50% of the maximum flow rate to the maximum value and from there again down to 50% of the flow rate maximum.

REFERENCES:
patent: 3352643 (1967-11-01), Ando et al.
patent: 3902848 (1975-09-01), Juvet, Jr.

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