Method for the trouble-free measurement of the residence time and the distribution of the organic, liquid phase in a liquid/liquid extraction system

摘要

The invention relates to a method for the trouble-free measurement of the residence time and the distribution of the organic, liquid phase in a liquid/liquid extraction system with an organic phase and an aqueous phase, in which the organic phase has an indicator substance added to it, which is detected by a detector in a non-contact and position-independent manner. The object of the invention is to provide a trouble-free measurement of fluid-dynamic parameters in such systems, in particular the measurement of the residence time and the distribution of the organic phase in the system, independent of the size and the material of the extraction apparatus. This is achieved by using as the indicator substance an organic compound which contains at least one radioactive halogen atom and which is soluble in the organic phase and insoluble in the aqueous phase.