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A method for the coulometric determination of the flow rate

: Kupka, H.; Luitjens, M.; Grinewitschus, V.; Dalsaß, K.-G.


Fresenius Journal of Analytical Chemistry 347 (1993), pp.87-91 : Lit.
ISSN: 0937-0633
Journal Article
Fraunhofer IMS ()
Analysenmeßtechnik; analytical measuring technique; Coulometrie; measuring principles; Meßprinzip; Titration

A procedure and instrumentation for the continuous determination of the flow rate of measured substances during coloumetric titrations are described. This deconvolution method allows to determine the instantaneous concentration value of the sample entering the coulometric cell. The decomposition process (e. g. combustion), which causees this concentration, occurs in a time interval which is much shorter than the time required for the titration itself. This feature makes the method useful for fractional analyses and for on-line measurements.